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': 'Infrahyoid muscles are supplied by: \nSelect and explain. \nA. Vagus nerve, B. Cervical plexus, C. Brachial plexus, D. Supraclavicular nerve', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The infrahyoid muscle (strap muscle) are a group of four pairs of muscles in the anterior part of the\xa0neck.\nThe four infrahyoid muscles are - sternohyoid, sternothyroid, thyrohyoid and omohyoid.\nInfrahyoid muscles either originate from or insert onto the hyoid bone.\nIts function is to depress the hyoid bone and larynx during swallowing and speech.', 'role': 'assistant'}]