Commerce

Yes, you can, you need to qualify certain exams if you want a seat in renowned colleges or university. You should have minimum 50% in 12th (any stream) to do BCA. It doesn't matter which stream student you choose.

Bachelor of Arts is one of the most opted courses after class 12th. Not only is it pursued by students belonging to the arts stream but is also opted by Commerce and Science stream students.There are many other options like you can go with acting, fashion etc.

After the ITI course, the student can pursue a diploma course through lateral entry, which will take three years to complete. The second step is to sit for JEE Advanced after completing the Diploma course, after which the student is eligible to get admission in the IITs. If this method does not work, then students can use the lateral entry scheme in state engineering colleges. As the student would have already completed the diploma course, the B.Tech programme will be completed in three years.

There are many universities providing this course abroad. This is a 3 year doctorate degree which you can pursue after your post graduation.
Some of them are, University of California San Diego
The University of Melbourne AustraliaThe University of British Columbia Canada
University of Hong Kong Hong Kong

Yes, you can apply for B.Sc. Statistics.

You can join the merchant navy course after 12th class from the commerce stream. Any Class X pass students or higher but from non-Science background can join the Merchant Navy by enrolling for the GP Rating Course. Admissions for the GP Rating Course are done throughout the year. You can join merchant Navy as a crew.

It depends on what were your subjects in 12th standard. If you have done your +2 in science then you acn pursue science otherwise you cannot if you are a commerce student from school.

Yes, you can definitely pursue BCA after your completion of 12th from commerce. There are many reputed colleges in India some of them have their own entrance exam.

For Information Science Paper HSC Commerce, the date is 15 March 2023.