Which term describes a chronic autoimmune disorder affecting the joints and sometimes other organs?

• A. Arthritis
• B. Synovitis
• C. Nevus
• D. Rheumatoid Arthritis

Answer: (D)

Rheumatoid arthritis is the term that specifically describes a chronic autoimmune inflammatory disorder that primarily targets the joints but can affect other organs as well. It involves an immune process attacking the synovial lining of joints, leading to swelling, pain, and stiffness that can be persistent and progressive. This distinguishes it from other terms: arthritis is a broad umbrella for joint inflammation without specifying an autoimmune cause or systemic involvement; synovitis refers to inflammation of the synovial membrane itself (a feature of many conditions, not a stand-alone disease); and nevus is simply a benign skin mole, unrelated to joint disease. So the best term here is the autoimmune, systemic joint disease rheumatoid arthritis.