Consider △ABC and △DEF. 
Which statement is true?
The triangles are congruent because there is a series of rigid motions that maps △ABC to △DEF.
The triangles are not congruent because several series of rigid motions map △ABC to △DEF.
The triangles are not congruent because the transformations that map △ABC to △DEF are not rigid motions.
                                             
                                          
                                          
                                        
											