If the operation ^ ^ is dened for all x and y by the equation x ^ ^ y = \frac{x^2 y}{2} , then (2 ^ ^ 1) ^ ^ (2 ^ ^1) =
(A) -4
(B) -2
(C) 2
(D) 4
(E) 8![]()
(A) -4
(B) -2
(C) 2
(D) 4
(E) 8