MCQOPTIONS
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				| 1. | 
                                    If carrier is modulated by a digital bit stream having one of the possible phases of 0°, 90°, 180°, and 270°, then modulation is called | 
                            
| A. | BPSK | 
| B. | QPSK | 
| C. | QAM | 
| D. | MSK | 
| Answer» C. QAM | |