Which one should I choose?

I’m confused between three career options and wanted your opinion. If you were in my place, which path would you choose.

1.)Pursuing Chartered Accountancy

2.)Starting a diamond business with my dad’s support and industry connection.

3.)Learning stock market trading, since my brother is already doing well in it and earning around ₹1 lakh per month

Currently i have these 3 options i am really confused which one should I choose