Which statement is true?
A- ∆MNR and ∆PNR are congruent by SSS.
B- ∆MQR and ∆PNR are congruent by SSS.
C- ∆MNR and ∆MQR are congruent by SSS.
D- ∆MNQ and ∆PNQ are congruent by SSS.
