This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'Crouzon syndrome consists of \nSelect and explain. \nA. Maxillary hypoplasia, B. Syndactyly, C. Macrocephaly, D. Microcephaly', 'role': 'user'}, {'content': "Answer: A \nExplanation: Crouzon syndrome consists of Autosomal dominant (FGFR2 Gene) Craniosynostosis involving coronal suture Wide set bulging eyes and beaked nose Maxillary hypoplasia Underdeveloped upper jaw& protruding lower jaw Dental problems, hearing loss Hydrocephalus Ref: Nelson's, 20th edition, page 2819", 'role': 'assistant'}]