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': 'What is placed during surgery for cochlear implant? \nSelect and explain. \nA. Microphone, B. Speech processor, C. Transmitting coil, D. Receiver stimulator', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Microphone, Speech-processor and Transmitter are the pa of external component of cochlear implant, which remain outside the body. Receiver/Stimulator (Implanted under the skin) and Electrode array (implanted in the scala tympani of the cochlea) are the pa of internal component of cochlear implant, which are fitted inside the body.', 'role': 'assistant'}]