What's the best way to approach this question in digital logic?

Question

Given answer: A
Please explain

Answer 1

to select I0 line AB should be 00 and now C is connected to I0 so fro min term ABCD here ABC are 001 D can take o or 1

so we get 0010  0011 ie m2 and m3

similarly for I1 we get AB as 01 and D 0 so 01C0 c can be 0 or 1  so 0110 and 0100 ie m4 and m6

Similarly for I2 AB 10 and D is  0 so we get 10C0 ie 1010 and 1000 ie 8 and 10

For I3 we have ABA' ie gives 0

So F=∑(m2,m3,m4,m6,m8,m10)