Which Muscles Produce the First Part of the Forward Swing

Multiple Choice

Which muscles produce the first part of the forward swing of the lower extremity in walking?

A) iliopsoas, tensor fascia latae, gracilis, rectus femoris
B) rectus femoris, hamstrings, iliopsoas, adductor longus
C) tensor fascia latae, gluteus maximus, adductors longus and brevis
D) tensor fascia latae, sartorius, pectineus, iliopsoas