Final answer:
Given the congruency of two triangles, the values of x and t would remain as given, which are x = 15 and t = 2, shown by choice A.
Step-by-step explanation:
The question provided involves a triangle congruency scenario where specific values are given for variables x and t. If triangle ABC is congruent to triangle KLM, and it is given that x = 15 and t = 2, the values of x and t remain the same in any congruent triangle, due to the property of congruency which states that corresponding sides and angles of congruent triangles are equal.
Therefore, the values of x and t are A) x = 15, t = 2.