Can someone help me on this triangle similarity question, I'm lost.

Question

Given: line MQ || line OP

Prove: triangle MNQ ~ triangle PON

Statements:

1. line MQ || line OP
2. angle QMN = angle OPN
4. triangle MNQ ~ triangle PON

Reasons:

1. Given
3. vertical angles

Answer 1

2) Since lines OP and MQ are parallel, line MP is a transversal and angles QMN and OPN are alternate interior angles, which are congruent.

3) Angle MNQ ≅ Angle ONP because they are vertical angles

4) AA Similarity Postulate (If two angles of one triangle are congruent to two angles of another, then the triangles are similar.)