extension, lateral flexion, flexion can occur across intervertebral joints of the vertebral column. Dorsiflexionis the odd one out.
Dorsiflexion is the act of bringing the toes closer to the shin, it is also referred to as the backward bending of an individual's foot or hand. when someone is walking on the heels of their ankle, their ankle can be described to be in dorsiflexion. therefore option d answers the question.
