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': 'In secondary syphilis, true about rash is – \nSelect and explain. \nA. Pruritic, B. Vesicular, C. Asymptomatic, D. Tender', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Initial lesion of secondary syphilis is characterized by macules which are :\xa0\n\ni) Non-pruritic (asymptomatic) \xa0 \xa0 \xa0 \xa0\nii) Bilateral symmetrical', 'role': 'assistant'}]