Concept:The joint between the head and neck allows rotation and nodding movements; this is a pivotal joint.
Explanation:In a pivotal joint, a cylindrical bone rotates within a ring formed by another bone or ligament.
This joint lets you bend your head forward and backward and turn it left or right.
Ball and socket joints (e.g., shoulder) allow movement in multiple directions.
Hinge joints (e.g., elbow) allow movement only in one plane.
Fixed joints do not allow any movement.
Hence, the joint where the neck joins the head is a pivotal joint.
Answer:B. Pivotal joint