Hello Aspirant,Hope you are doing well

You need to choose the code 02.

This is because,

Though you are doing BBA your highest qualification with all the three subjects i. e physics chemistry and Biology/biotechnology remains your 10+2

While, those who have passed 1st year of 3 year graduation with all the three subject i. e physics chemistry and Biology/Biotechnology needs to select code 5 and those who have completed BSc with at least any two of physics chemistry and Biology in their bsc need to select code 6.

For further details visit this

https://medicine.careers360.com/articles/neet-qualification-codes

Hope this helps you

ALL THE BEST