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': 'Gingival enlargement with leathery consistency with characteristic minutely pebbled surface is seen in \nSelect and explain. \nA. Idiopathic gingival enlargement, B. Drug induced gingival enlargement, C. Pregnancy gingival enlargement, D. Puberty gingival enlargement', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]