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': 'Which of the following muscle is derived from the 1st arch? \nSelect and explain. \nA. Stylopharyngeus, B. Tensor tympani, C. Platysma, D. Cricothyroid', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Human embryology Tenth edition Inderbier Singh Page no 132 First arch: medial and lateral pterygoid, masseter, temporalis, tensor tympani, tensorpalati', 'role': 'assistant'}]