Answer:
B. NQ
Step-by-step explanation:
In Geometry, notably in triangles, two objects or sides are considered to be congruents, when their shapes and sizes are of the same, and with exactly the same angles.
Therefore, in this case, Since Triangle RST is congruent or equals to Triangle NPQ, then
the corresponding angles and corresponding sides should have the same measure and lengths. Hence, from the question, side RT is congruent to side NQ.
Hence, the correct answer to the question is option B. NQ.