This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: DNB 2018, Subject name: ENT
[{'content': 'Which cranial nerves affected in Moebius syndrome? \nSelect and explain. \nA. 5, 6 CN, B. 5, 7 CN, C. 6, 7 CN, D. 6, 9 CN', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Moebius syndrome - Rare neurological disorder, congenital oculofacial paralysis Congenital defect - paralysis of 6th and 7th CN Mask like face - expressionless Unable to close eyes- corneal ulceration Strabismus', 'role': 'assistant'}]