This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pituitary-Hypothalmic System and Thyroid, Subject name: Pharmacology
[{'content': 'Drug of choice for hypehyroidism during 2nd trimester of pregnancy is: \nSelect and explain. \nA. Propylthiouracil, B. Carbimazole, C. Sodium iodide, D. Radioactive iodine', 'role': 'user'}, {'content': 'Answer: B \nExplanation: HYPEHYROIDISM IN PREGNANCY DOC for hypehyroidism in pregnancy is Propylthiouracil. DOC for hypehyroidism in first trimester of pregnancy is Propylthiouracil. DOC for hypehyroidism in 2nd and 3rd trimester of pregnancy is Carbimazole.', 'role': 'assistant'}]