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: Anatomy
[{'content': 'Which of the following muscle is responsible for opening the jaw \nSelect and explain. \nA. Medial pterygoid, B. Lateral pterygoid, C. Masseter, D. Temporalis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Jaw opening or depression of mandible is caused by contraction :\n\nDigastric.\nGeniohyoid.\nMylohyoid.\nLateral pterygoid.', 'role': 'assistant'}]