hello aspirant,

we can recommend you to should choose the commerce  stream  because you will easily be able to clear the AAO paper also if you study well in the commerce  stream  .

AAO is the highest post one can get in  SSC CGL  . Also, After 10 years of service, You will become an IAS.

however, if you are asking for options among btech and bsc, then you should choose the branch where you will be able to get more time for the preparation for your studies.

you should note that btech and bsc, both the career options are very good and will be very helpful to you.

hope that helps