JEE Mains 2020 Model Paper 1 New Pattern

A + = AB ,
A - (A + B - AB) = I ,
(I - a) (I - B) = I
|I - A| |I - B| = |I| ,
|I - A| , |I - B| are non zero
Also (I - B) (I - A) = I ,
I - A - B + BA = I
A + B = B + A
AA = BA
∴ c is correct