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
LGV is caused by 
Select and explain. 
A. Chalamydia trachomatis, B. Haemophylus ducrei, C. HTLV type II, D. Donovanosis granulomatis
A: Chalamydia trachomatis
Answer: A: Chalamydia trachomatis 
Explanation: LGV is caused by chlamydia trachomatis, serotypes, L1, L2, L3.