This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Vitamins and Minerals, Subject name: Biochemistry
[{'content': 'Vitamin given in pregnant women to prevent neural tube defect: \nSelect and explain. \nA. Folic acid, B. Vitamin B12, C. Vitamin C, D. Vitamin A', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans: a (Folic acid) Ref: Vasudevan, 4th ed, p. 292; ed, p. 305Folic acid given during pregnancy prevents foetal malformations such as spina bifida.Folic acid:Folic acid consists of pteridine attached to one molecule of PABAand glutamic acid.', 'role': 'assistant'}]