In a diagram where lines are parallel and cut by a transversal, congruent angles can be identified based on their positions. If we assume standard labeling where:
- ∠7 is located in one of the angles formed by the transversal and one of the parallel lines,
- ∠1 and ∠5 are corresponding angles,
- ∠2 and ∠6 are alternate interior angles,
- ∠3 and ∠7 are consecutive interior angles, and
- ∠4 and ∠8 are alternate exterior angles.
The angles congruent to ∠7 would typically be ∠3 since they are both interior angles on the same side of the transversal. However, since that option is not listed, consider the following congruencies:
- ∠5 (if ∠7 is in a position where ∠5 is a corresponding angle, they would be congruent).
Based on these geometric conventions, the answer depends on the exact configuration of angles relative to ∠7, but if the options only include the angles listed, the likely correct choice is D. ∠5 assuming ∠5 is positioned correspondingly to ∠7 in the parallel line scenario.