To prove that triangles \( \triangle ABC \) and \( \triangle QRS \) are congruent by the Angle-Side-Angle (ASA) Congruence Theorem, you need the following information:
- You must have one pair of corresponding angles that are congruent.
- The length of the side that is included between those angles must be congruent.
- You need one more pair of corresponding angles to be congruent.
From your options, you have:
- If \( \angle C \cong \angle S \) (one pair of congruent angles).
- A side included between those angles: either \( AC \cong QS \) or \( AB \cong QR \).
- A second pair of angles: \( \angle A \cong \angle Q \) or \( \angle B \cong \angle R \) (this would provide the second congruent angle required for the ASA).
To succinctly state which specific additional information would complete the requirement:
- If you confirm \( \angle A \cong \angle Q \) (or another corresponding angle) along with one of the congruent sides (like \( AC \cong QS \)), then you would have everything needed for ASA.
Thus, any response indicating a congruent angle or a congruent side paired with the congruent angle should be chosen.