This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immunomodulator, Subject name: Pharmacology
A methotrexate intolerant psoriasis patient has been prescribed an alternate disease modifying drug (DMARD) that resulted in liver dysfunction combined with skin rashes and bone marrow suppression of RBC's & platelets. The most probable drug is 
Select and explain. 
A. Anakinra, B. Leflunomide, C. Abatacept, D. Sulfasalazine
B: Leflunomide
Answer: B: Leflunomide 
Explanation: Answer: b) Leflunomide* Abatacept is associated with infections due to inhibition of normal T-cell activity.* Sulfasalazine causes agranulocytosis and hepatitis along with rashes.* Leflunomide causes skin rashes and bone marrow suppression of RBC's & platelets.* Anakinra therapy may lead to neutropenia but not bone marrow suppression.