Let n, k, and y be positive integers such that y > n. If k*2^n = 2^y +

Let n, k, and y be positive integers such that \(y > n\). If \(k*2^n = 2^y + 2^n\), then k could equal all of the following except:

A. 33
B. 65
C. 123
D. 257
E. 513


Are You Up For the Challenge: 700 Level Questions