Two triangles are shown to be congruent by identifying a combination of translations, rotations, or reflections that move one figure onto the other. If ΔMAP ≅ ΔCAR, which angle must be congruent to ∠ARC? Why?
A) ∠APM because corresponding parts of congruent triangles are congruent.
B) ∠PAM because corresponding parts of congruent triangles are congruent.
C) ∠APM because the triangles are isosceles and the base angles are congruent.
D) ∠PAM because the triangles are isosceles and the base angles are congruent.