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: Skin
[{'content': 'Not true of secondary syphilis \nSelect and explain. \nA. May be asymptomatic, B. Usually involve palms & soles, C. Vesicular Bullous lesions, D. Lymphadenopathy', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. Vesicular lesions', 'role': 'assistant'}]