If 2^2n + 2^2n + 2^2n + 2^2n = 4^28, then n =
Choose the correct choice from the following answers
A) 3
B) 6
C) 12
D) 27
E) 24

Rationale: "2 ^ 2 n + 2 ^ 2 n + 2 ^ 2 n + 2 ^ 2 n = 4 ^ 28 = > 4 x 2 ^ 2 n = 4 ^ 28 = 2 ^ 56 = > 2 ^ 2 x 2 ^ 2 n = 2 ^ 56 = > 2 ^ ( 2 n + 2 ) = 2 ^ 56 = > 2 n + 2 = 56 = > n = 27 so . answer will be d ."
Answer: D