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: Surgery
[{'content': 'In solitary thyroid nodule true is/are :a) THR-Abb) Lined by columnar epitheliumc) Diffuse hyperplasia of thyroidd) Common in femalee) Thyroidectomy done \nSelect and explain. \nA. de, B. bc, C. cd, D. bd', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]