This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ear, Subject name: ENT
[{'content': 'Function of stria vascularis is? \nSelect and explain. \nA. Perilymph secretion, B. Endolymph secretion, C. Both perilymph and endolymph secretion, D. CSF secretion', 'role': 'user'}, {'content': "Answer: B \nExplanation: ANSWER: (B) Endolymph secretionREF: Dhingra 4th Ed Page 11, Scott-Brown's Otorhinolaryngology, Head and Neck Surgery 7th ed vol 1 page 3187, Guyton 12th ed page 637See ENT 2013 Session 1 for physiology of Perilymph and Endolymph", 'role': 'assistant'}]