In Order to Accurately Measure Anatomical Leg-Length Discrepancy, the Measurements

In order to accurately measure anatomical leg-length discrepancy, the measurements should occur between which of the following anatomical structures?

A) Posterior superior iliac spine to the lateral malleoli
B) Posterior superior iliac spine to the medial malleoli
C) Anterior superior iliac spine to the medial malleoli
D) Anterior to the lateral malleoli
E) The umbilicus to the lateral malleoli