Mark Suffers from Severe Pain in His Knees Due to an Inflammation

Multiple Choice

Mark suffers from severe pain in his knees due to an inflammation of the membranes surrounding the joints. He finds it extremely painful to walk. If Mark's condition is due to his tissues being attacked by his body's immune system, he is suffering from ______.

A) rheumatoid arthritis
B) osteoarthritis
C) septic arthritis
D) psoriatic arthritis