361, 289, 225, 169, 121, ?  Options:	A) 36	B) 49	C) 64	D) 81	E) 100
Explanation :   The pattern is 19^2, 17^2, 15^2, 13^2, 11^2, ...   So next number is 9^2 = 81   Answer : Option 64
<result>C</result>
361, 289, 225, 169, 121, ?