Please help!! ASAP: For △PQR with QR>PQ, for the first step toward proving ∡QPR>∡PRQ using the inequality in one triangle theorem, point S is placed on side QR, and line segment PS is drawn. Explain the two line segments that must be congruent.
A. Line segments PS and QR must be congruent so that ∠PRQ is congruent to ∠RPQ.
B. Line segments PQ and QS must be congruent so that ∠QPS is congruent to ∠QSP.
C. Line segments PQ and PS must be congruent so that ∠QPS is congruent to ∠PQS.
D. Line segments PQ and QR must be congruent so that ∠PRQ is congruent to ∠RPQ.