M.Sc

Hi,
Yes, you can apply for Master of psychology from any stream whether it's arts, science or commerce. It is the study of human behavior, body language, social impact on human nature, etc.
You need to apply university wise for the admission process and most of the university require minimum 50% in graduation.

It depends on what you choose. India is not a bad country either for both the degrees. If you have chosen Canada then go for it.

Yes, you can. You need to qualify the entrance test of the college in which you want to take admission. At the time of admission, you need to present the portfolio which you have prepared.

M.Sc is a better option, but I will advise you to opt for some other subject.

Yes, you can apply for this course.

Hello,
Thanks for asking.
Actually, it completely depends on your interest.
If you want to see their career in Science can go for M.Sc. Because the career options are really great after completing M.Sc.
You can appear in csir net exam to become Junior Research Fellow or an Assistant Professor.
Check Jobs & Career in CSIR here- https://scoop.eduncle.com/csir-recruitment-net-jrf and if you don't want to read & learn Science more then go for MBA.
MBA is a professional course of management & career opportunities are also good in it.
Now, you have to decide which one is better for you.
Best of luck.