Osteoarthritis is a degenerative joint disease that is common in the elderly. Choose which statement accurately describes the role that synovial fluid plays in osteoarthritis:

• A. It is a thick fluid with an egg-white-like consistency that lubricates and reduces friction between joints.
• B. With age, the amount of synovial fluid decreases
• C. When synovial fluid is low, it can contribute to joint stiffness
• D. All of the above

Answer: (D)