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': 'Chancroid may be caused by – \nSelect and explain. \nA. T. pallidium, B. G. donovani, C. Chlamydia trachomatis, D. Herpes hominis virus', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Besides, H. ducreyi chancroid can be caused by herpes virus hominis, corynebacterium species, staph. epidermidis, streptococci, B melaniogenicus, N. gonorrhea (rarely).', 'role': 'assistant'}]