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: ENT
[{'content': 'The first branch of the facial nerve is - \nSelect and explain. \nA. Greater petrosal nerve, B. Lesser petrosal nerve, C. Chorda-tympani nerve, D. Nerve to the stapedius', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Greater superficial petrosal nerve: - It is the first branch and arises from geniculate ganglion (i.e., first genu). It joins the deep petrosal nerve to form vidian nerve (nerve to the pterygoid canal) and carries secretomotor fibres to the lacrimal gland, nasal gland, Palate gland and pharyngeal gland.', 'role': 'assistant'}]