Suppose △DEF≅△MNO. Which congruency statement is true?
EF¯¯¯¯¯MN¯¯¯¯¯¯¯DE¯¯¯¯¯MN¯¯¯¯¯¯¯DF¯¯¯¯¯NO¯¯¯¯¯¯EF¯¯¯¯¯MO¯¯¯¯¯¯