Answer:
C) AAS Congruence Theorem
Step-by-step explanation:
The Angle Angle Side postulate (often abbreviated as AAS) states that if two angles and the non-included side one triangle are congruent to two angles and the non-included side of another triangle, then these two triangles are congruent.
In this case the congruent angles are: M with P (shown in the figure) and N, which is equal in both triangles because two opposite angles are formed in the intersection of segments MP with RQ.
The congruent non-included sides are RN and NQ (shown in the figure).