Question

A. CPCTC b. SAS c. ASA d. SSS

Answer 1

a. CPCTC is your answer

CPCTC means that "Congruent Parts of a Congruent Triangle(s) are Congruent"

If ΔBRM ≅ ΔKYZ (given), then every part inside the triangle is ≅ with the corresponding side.
So, for example Line BR will be ≅  with Line KY, etc

hope this helps