This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Chemotherapy, Subject name: Pharmacology
[{'content': "Which of the following statement is true regarding methotrexate? \nSelect and explain. \nA. Oral bioavalability is 30-40%, B. Do not interfere with action of IL-1, C. Causes Thrombocytopenia, D. Not useful in crohn's disease", 'role': 'user'}, {'content': 'Answer: C \nExplanation: Methotrexate causes hepatotoxicity, bone marrow suppression, alopecia, mucositis etcRef: Katzung 13th ed Pg: 1074', 'role': 'assistant'}]