If a and b are positive integers and (2^a)^b = 2^2, what is the value of 2^a*2^b?	Choose the correct choice
A) 8  B) 4  C) 16  D) 32  E) 64

Rationale: "2 ^ ab = 2 ^ 2 therefore ab = 2 either a = 1 or 2 or b = 2 or 1 therefore 2 ^ a * 2 ^ b = 2 ^ ( a + b ) = 2 ^ 3 = 8 a"
Answer: A