Is △PMR similar to △SMN ? If so, which postulate or theorem proves these two triangles are similar?
A. △PMR is similar to △SMN by the SSA Similarity Theorem .
B. △PMR is similar to △SMN by the SAS Similarity Theorem .
C. △PMR is similar to △SMN by the SSS Similarity Theorem .
D. △PMR is not similar to △SMN
