What is the range of this relation?
A. {1, 2, 4, 6}
B. {1, 2, 4,5}
C. {1, 2, 4, 5, 6}
D. {0, 1, 2, 3, 4, 5, 6}
                                             
                                          
                                          
                                        
											 
			                  