MCQOPTIONS
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				| 1. | 
                                    Find the unit place digit in the expression given below:_x005F_x000D_ 1! + 2! + 3! + 4! + ..... + 20!_x005F_x000D_ | 
                            
| A. | 5 | 
| B. | |
| C. | 3 | 
| D. | 9 | 
| Answer» D. 9 | |