Answer:
∠EBA and ∠DBC
∠EBC and ∠DBA
Explanation:
This question is emphasizing the vertical angles theorem, which state that the above angles have to be congruent because they are vertical to each other.
So the simple way to figure out which are congruent, is to identify which angles are actually across from each other. Be sure not to look at the wrong angle!
This was the best way to explain this, hopefully you learned something from it.