1.  196, 169, 144, 121, 100, 80, 64
A. 169
B. 144
C. 121
D. 100
E. 80

Answer: Option E

Explanation:

Numbers must be (14)2, (13)2, (12)2, (11)2, (10)2, (9)2, (8)2.

So, 80 is wrong.