if 0<x<16.5 and x=2^m for some positive integers m, what is the value of x?

a 1
b 2
c 4
d 6
e 8

well,

2^1 = 2
2^2 = 4
2^3 = 8
2^4 = 16
2^5 = 32

so what is your interpretation?