If xk = 0 for k < 0 and xk = 2k for k 3 0, X(z) i.e., Z transform of sequence x is

If xk = 0 for k < 0 and xk = 2k for k 3 0, X(z) i.e., Z transform of s

1.	If xk = 0 for k < 0 and xk = 2k for k 3 0, X(z) i.e., Z transform of sequence x is
A.	[A].
B.	[B].
C.	[C].
D.	[D].
Answer» B. [B].