Seven students A, B, C, D, X, Y and Z are sitting in their classroom facing in the southern direction A and D do not sit together. Z sits second to the left of X. B does not sit with Z. X is fourth to the right of C. A and B are not sitting together. C sits in between D and Y. Y sits second to die left of the one who sits second to the left of B. Who sits at the
extreme ends?

A

B and D

B

C and Y

C

Z and X

D

A and B