A nurse is assessing a client's peripheral circulation. In which of the following locations should the nurse palpate to assess the posterior tibial pulse? (Selectable areas, or "Hot Spots," are outlined in the artwork below. Select only the outlined area that corresponds to your answer.)

Rationale: A. The femoral triangle, located in the upper thigh near the inguinal ligament, is where the femoral artery runs and is palpated for the femoral pulse. It does not provide information about distal lower extremity circulation, so it is not used to assess the posterior tibial pulse. B. The knee area corresponds to the popliteal artery, which is palpated behind the knee for the popliteal pulse. This site is deeper and more difficult to palpate, and it does not reflect circulation in the foot or ankle. C. The posterior tibial pulse is located on the postero-medial aspect of the lower third of the leg, just behind the medial malleolus. Palpating here allows assessment of arterial blood flow to the foot and helps detect peripheral arterial disease in the lower extremities. D. The area between the second and third toes is where the dorsalis pedis artery runs. Palpating this site assesses the dorsalis pedis pulse, not the posterior tibial pulse, and evaluates a different part of foot circulation.