What additional information is needed to prove the triangles similar by the SAS Similarity Criterion?

Answer:
if two sides of one triangle are proportional to two sides of another triangle and their included angles are congruent, then the triangles are similar.
Answer:
Step-by-step explanation:
SAS requires two sides have same ratio and the included angle to be congruent.
We are given two sides with ratio:
The missing information is the congruence of the included angle:
Correct answer choice is C