This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Epilepsy, Subject name: Pharmacology
[{'content': 'All are true regarding fetal hydantoin syndrome except : \nSelect and explain. \nA. Digital hypoplasia, B. Macrocephaly, C. Microcephaly, D. Cleft lip', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Macrocephaly is not a feature of fetal hydantoin syndrome Fetal hydantoin syndrome Phenytoin is teratogenic Features : Hypoplastic phalanges Cleft palate Harelip Microcephaly Due to arene-oxide metabolite', 'role': 'assistant'}]