MCQOPTIONS
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				| 1. | 
                                    The facility which allows mobile subscribers to switch from one service provider to another without changing their mobile number is known as Mobile Number........ | 
                            
| A. | Promatability | 
| B. | Protectability | 
| C. | Portability | 
| D. | Permeability | 
| Answer» D. Permeability | |