The diagram in the image shows a triangle with points R, U, Q, and S. Based on the options provided, here's how we can analyze the diagram:

1. SU is a perpendicular bisector – A perpendicular bisector would imply that line SU divides a segment (possibly RQ) into two equal parts at a right angle.
2. SU is an angle bisector – An angle bisector would mean that SU divides the angle at point S into two equal angles.
3. S is the vertex of a right angle – If there is a right angle at S, we would expect to see a square box or some indication of a 90° angle.
4. U is the vertex of a right angle – This would mean that there is a right angle at point U, which should also be indicated visually.
5. S is the midpoint of a segment in the diagram – The midpoint would imply that S divides a segment into two equal lengths.

From the visual clues in the diagram, we can infer which of these statements are true based on the diagram’s characteristics. It’s likely that S is the vertex of the angle since the triangle has specific markings that hint at this, and the diagram may show equal segments if SU is indeed a bisector of the angle.

To proceed, I recommend confirming if there are any other angle marks or indications in the diagram that suggest a perpendicular bisector or midpoint. Based on your observations, the correct options can be selected.

Let me know if you'd like further analysis or clarification!