This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immunomodulators, Subject name: Pharmacology
Abatacept is a new drug approved for : 
Select and explain. 
A. SLE, B. Rheumatoid ahritis, C. Sjogren syndrome, D. Scleroderma
B: Rheumatoid ahritis
Answer: B: Rheumatoid ahritis 
Explanation: Abatacept is the newer biological being used in refractory Rheumatoid Ahritis. The other newer biological agent used is Rituximab which is a monoclonal antibody that destroys B cells. It is a fusion protein composed of the Fc region of the immunoglobulin IgG1 fused to the extracellular domain of CTLA-4. ESSENTIALS OF MEDICAL PHARMACOLOGY; SEVENTH EDITION -K.D TRIPATHI Page:212