Which of the following can be used to show that these two triangles are
congruent?

The sides with the little stroke between the lines “B” and “E” are congruent to each other. Also, within the top of the triangles by the very tip of the triangle by “C” that are facing each other are congruent, and of course angle B and E are also congruent angles. I’ll show a picture so you can get a better understanding of what am exactly meaning. This is an AAS Triangle by the way. 1 side is congruent and 2 angles are congruent with this diagram. I really hope this answer and the picture helps!

These are the multiples of 15 but what you are probably asking or what are the factors of 15