This is a multiple choice question.

) Assume that i if n is odd, an = 0 if n is even. Which of the following are true? 00 a) The interval of convergence of Z anx\" is {0}. n=0 b) The interval of convergence of Z onus\" is (00, 00). n=0 ()0 c) The interval of convergence of Z onus\" is (1,1). n=0 ()0 d) The interval of convergence of Z anus" is [1, 1). n=0 e) The interval of convergence of Z onus\" is [1, 1]. n=0