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: Dental
[{'content': 'Hold Pull exercise is used for: \nSelect and explain. \nA. Muscles of upper lip, B. Muscles of lower lip, C. Muscles of tongue, D. Masseter', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Exercises of the Tongue\nExercises of the tongue are done to correct any aberrant tongue swallow patterns:\na. One elastic swallow\xa0\nb. Two elastic swallow\xa0\nc. Tongue hold exercise\nd.\xa0Hold pull exercise\xa0\nExercises of the Lip\na. Lip pull exercises\nb. Lip over lip exercises\xa0\nKey Concept\nHold pull exercise: The tip of the tongue is made to contact the palate in the midline and the mandible\xa0is gradually opened. This allows the stretching of the frenum to relieve a mild tongue-tie.', 'role': 'assistant'}]