Showing your palm to someone who is in front of you, as if to tell them "Stop," requires

A) dorsiflexion of the hand.
B) hyperextension of the wrist.
C) abduction of the wrist.
D) flexion of the wrist.
E) hyperextension of the metacarpophalangeal joints.

Hyperextension

A movement that increases the angle between two body parts beyond the normal range of motion, often referring to joints.

Dorsiflexion

The movement that brings the top of the foot toward the shin, decreasing the angle between them.

Abduction

The movement of a limb or other part away from the midline of the body, or from another part.