This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Sexually transmitted diseases, Subject name: Dental
[{'content': 'LGV is caused by - \nSelect and explain. \nA. Chalamydia trachomatis, B. Haemophylus ducrei, C. HTLV type II, D. Donovanosis granulomatis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Lymphogranuloma venerum is caused by Chlamydia Trachomatis, serovars L1, L2 and L3. From illustrated synopsis of dermatology and sexually transmitted diseases neena khanna 5th edition page no 330', 'role': 'assistant'}]