I believe the answer would be c. condyloid joints.
Explanation:
Since the condyloid joint is formed when a bone with an elliptical end is connected to another bone with an elliptical cup. It allows for rotation in two planes.
Answer:
Typically, the pain you experience with adult onset scoliosis is the result of pressure on your spinal disks. But scoliosis can cause pain for other reasons.
The curvature of the spine can stretch, irritate, or squish nerves. It can also strain joints, causing them to become worn or inflamed.