The correct option is C Rheumatoid arthritis
Rheumatoid arthritis is a consequence of changes in the body's immune system which (for reasons not fully understood) attacks the soft tissue of the joints causing inflammation, swelling and pain.The joint is contained within a joint capsule, which is lined by a synovial membrane (synovium). A sprain is a stretch or tear of a ligament while a strain is an injury to a muscle or tendon. Osteoarthritis (OA) is a type of joint disease that results from the breakdown of joint cartilage and underlying bone.