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				| 1. | Let y[n] = x[n] ∗ h[n], where ∗ denotes convolution and x[n] and h[n] are two discrete time sequences. Given that the z-transform of y[n] is Y(z) = 2 + 3z-1 + z-2, the z-transform of p[n] = x[n] ∗ h[n − 2] is | 
| A. | 2 + 3z + z−2 | 
| B. | 3z + z−2 | 
| C. | 2z2 + 3z + 1 | 
| D. | 2z−2 + 3z−3 + z−4 | 
| Answer» E. | |