Which of the Following Statements About Thigh Pressure Is True

Which of the following statements about thigh pressure is true?

A) Auscultate either the popliteal or femoral vessels to obtain thigh pressure.
B) The best patient position for measuring thigh pressure is the supine position with the knee slightly bent.
C) If the BP in the arm is high in an adolescent,compare it with thigh pressure.
D) Thigh pressure is lower than that in the arm because of the distance from the heart and the size of the popliteal vessels.