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: Gynaecology & Obstetrics
[{'content': 'The following are true of Trichomoniasis, except: \nSelect and explain. \nA. Is a sexually transmitted disease, B. Is associated with immunosuppression, C. Is most often asymptomatic, D. Produces copious thin frothy discharge', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Trichomoniasis has no association with immunosuppression.', 'role': 'assistant'}]