Final answer:
Ankle extension is also called plantar flexion (Option C).
Step-by-step explanation:
Ankle extension is referred to as plantar flexion, a movement characterized by lifting the heel or pointing the toes downward at the ankle joint. This movement occurs at the hing* joint of the ankle, where plantar flexion involves lifting the heel of the foot from the ground or pointing the toes downward. This movement allows for standing on the toes or pushing off during walking or running.
Unlike dorsiflexion, which is the lifting of the front of the foot towards the leg, plantar flexion decreases the angle between the foot and the leg. Additionally, inversion and eversion are movements involving the intertarsal joints of the foot, which are not the same as ankle dorsiflexion or plantar flexion.
Thus, the correct option is C.