This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
Drug of choice for the treatment of hyperthyroidism in pregnancy is: 
Select and explain. 
A. Propylthiouracil, B. Radio iodine, C. Carbimazole, D. Iodides
A: Propylthiouracil
Answer: A: Propylthiouracil 
Explanation: None