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': 'Circle of Hebra is associated with – \nSelect and explain. \nA. Syphilis, B. Scabies, C. Leprosy, D. Lichen planus', 'role': 'user'}, {'content': 'Answer: B \nExplanation: In scabies severe itching typically worsen at night, most notably along the web spaces of finger, wrists, elbows, axillae and groin area\xa0→\u200b\xa0areas known as the circle of Hebra.', 'role': 'assistant'}]