An Older Adult Visiting a Wellness Clinic Reports Joint Stiffness

An older adult visiting a wellness clinic reports joint stiffness in the morning. Which of the following statements, by the nurse, is best?

A) "As we age, the cartilage in joints gets rough, causing stiffness."
B) "The stiffness is due to decreased moisture in joint bones."
C) "The body makes extra synovial fluid as we age, and that makes joints stiff."
D) "The fluid in your joints gets thinner as you age, so your joints get stiff."