If A(k)=(2k+1)^K, and k=0, what is the value of A(A(A(k)))? Choices: A) 343 B) 199 C) 121 D) 69 E) 249

Rationale: a ( a ( a ( 0 ) ) ) = a ( a ( 1 ) ) = a ( 3 ) = ( 6 + 1 ) ^ 3 = 343 . thus , the answer is a .
Answer: A