Alex wants to construct a line segment through R that makes the same angle with line segment QR as line segment PQ . The figure below shows a step to construct a congruent angle at R: A line segment QR is drawn. PQ is a line segment that makes an obtuse angle of about 120 degrees with QR. An arc, indicating the measure of angle PQR intersects PQ at S and QR at T. Another arc drawn from point R is a reflection of the first arc but of the same measure and intersects QR. A compass with its ends at points S and T is shown.

Which figure shows the next step to construct a congruent angle at R? (1 point)