B.Sc

Category comes into the picture, but it is a very good course for upcoming future.
All the best.

Yes, you can try for private universities. You can take admission on the basis of your +2 percentage.

After B.Sc, if you choose to do B.Ed, you can only apply for primary class teacher job in govt. schools as TGT. For post-graduate trained (PGT) teachers, you should have both M.Sc and B.Ed degree. If you have a genuine interest in teaching then do M.Sc and after that B.Ed. If you want to do a job in private sector companies, go for MBA.
Good luck.

As per my knowledge, in foreign countries more preference is given to the M.Sc courses as compared to other courses like MBA or other Master's degree courses, so you should opt for M.Sc in CS if you want work abroad and if you want to get detailed explanation then you better contact a consultant who conducts the IELTS classes. They will guide you precisely.

Yes, she can apply because they taught it in the first year, but she needs to work hard more than who chose mathematics.