MCQOPTIONS
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				| 1. | 
                                    The constraint on r = |z| for which the following non-causal system converges is | 
                            
| A. | |z| < 1/4 | 
| B. | |z| < 1/2 | 
| C. | |z| < 4 | 
| D. | |z| < 2 | 
| Answer» C. |z| < 4 | |