The answer is letter
B.
Gliding joints are a
common type of synovial joints that form between bones that meet at flat or
nearly flat surfaces. They allow the bones to glide past one another in any
direction --- up and down, left and right, and diagonally. Rotations can be
performed through these joints but are only in a limited way because of the
shape of the bones and the joint capsule’s elasticity that surrounds the joint.
The gliding joints in the human body are the elbows, the knees, the hips, and
the wrists.
