This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neck, Subject name: Surgery
[{'content': '20-year-old female presents with a cystic swelling in the neck- It moves up with protrusion of tongue. \nSelect and explain. \nA. Thyroid swelling, B. TG cyst, C. Sublingual gland swelling, D. Ranula- plunging', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. (b) TG cyst* Thyroglossal cyst moves with protrusion of tongue* Other swellings which move only with deglutition are - Subhyoid bursitis, Midline Dermoid cyst and Thyroid swelling.', 'role': 'assistant'}]