Mass Communication

See these both are very different fields, one is for managing business administration, whereas, another is in media and journalism world. Both have got a very deep need in this world. One connects the world by imparting news around the globe, whereas, another connects to the world with there effective products and services to every part possible.
Nowadays, as media has diverse fields like radio, print media, TV, and others with much tough competition, where you need much art in your hands (Pen) and words. So, to go in this field, you need to have skills.
1. Writing power
2. Speaking art
3. Patience
4. Calmness
5. Great interest
It has a good scope if you have interest.
Whereas, in management also you have great and increasing demand as, nowadays, startups are increasing with requirements of skilled professional managers to take their business to great heights. For this, you need to have
1. Brain twisting (situational)
2. Communication skill
3. Patience
4. Risk taking heart
5. Cooperative nature
I will just suggest better than thinking too much, think that which course you got much interest in and from which you can achieve better scope.
Hope you got your answer.
All the best.

Screenwriting is a process of writing a script, but this is only used for filmmaking that has narrative elements that involve dramatic elements and other components of the film that need to be seen on the screen to serve the overall narrative like the setting, the lighting and movements. Screenwriting provides the visuals that complement what the characters are doing and saying. The mood accentuates the drama or humour that the characters are executing based on the script.
It deals more with how the story is going to be perceived by describing where the characters are, what they are doing, what they are saying and everything else that's happening around them. It may not even include character dialogues to accomplish this.

Step 1: Complete an Undergraduate Program
Students who are interested in becoming a radio DJ can enroll in an associate's or bachelor's degree program in communications or broadcast journalism. Students will take courses in radio announcing, speech, news reporting, broadcast writing and media research. Although associate degrees are offered, bachelor's degrees are necessary to be competitive even for entry-level jobs, according to the U.S. Bureau of Labor Statistics (BLS).
Step 2: Do an Internship
Colleges and universities may offer students an opportunity to participate in an internship with a radio station. While an internship may not offer students a chance to get on air, they'll learn behind-the-scenes aspects of working at a radio station. This will also give them a chance to network and develop contacts in the industry.
Step 3: Get on the Air
Students may be able to find opportunities to get on the air with their campus radio station. College radio stations typically provide a hands-on environment where students may gain real-world experience. These stations often broadcast 24 hours a day, so students can get experience engaging both daytime and nighttime listeners. Students also learn about FCC rules, broadcasting law and ethics as well as personnel management and station programming while being provided with a chance to get on air.
Success Tip
Put together a reel. In order to obtain a job, prospective radio disc jockeys need a reel. Disc jockeys should edit reels of their best work to send to prospective employers. No matter the experience or education, radio stations will need to hear how a radio DJ sounds on the air and how they communicate with an audience.
Step 4: Hone Your Skills at a Small-Market Station
The BLS notes that radio DJs should get comfortable with their on-air personalities and build their reputation in smaller markets before moving on to larger-market stations. This gives radio DJs the opportunity to tailor their announcing style to better engage and retain an audience. Professionals in this field often need to relocate to larger markets to advance their careers. As such, larger studios typically put heavy emphasis on a radio DJ's ratings in smaller markets when deciding on who to hire.