which of the following guarantees that ABC and DEF are similar triangles? (with picture)

Answer:
C. angle B, E congruent; angles C, F congruent
Step-by-step explanation:
For similarity, angles must be congruent. When two angles are congruent to their corresponding angles, then the third must be also.
It is not sufficient for one angle to match, and congruent sides have nothing to do with similarity.