Question

the opposite action from flexion is: a plantar flexion. b extension. c inversion. d elevation.

Explanation:

Flexion decreases the angle between bones at a joint. Extension increases the angle between bones at a joint, which is the opposite action. Plantar - flexion is a type of movement at the ankle, inversion is the turning of the sole of the foot inward, and elevation is the upward movement of a body part, none of which are the opposite of flexion.

Answer:

B. extension