If N = 2^0.25 and N^b = 8, b must equal
Choose the correct answer:
A) 3 / 80
B) 3 / 5
C) 12
D) 5 / 3
E) 80 / 3

Rationale: "25 / 100 = 1 / 4 n = 2 ^ 1 / 4 n ^ b = 2 ^ 3 ( 2 ^ 1 / 4 ) ^ b = 2 ^ 3 b = 12 answer : c"
Answer: C