This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Skin
[{'content': 'All of the following are primary lesions of skin except ____: \nSelect and explain. \nA. Nodule, B. Purpura, C. Wheal, D. Scar', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. D. Scar* Scar is a secondary skin lesion.* Scar occurs due to the replacement of a tissue destroyed by injury or disease by fibrous tissue.Primary Lesions of SkinPrimary lesions of the skin include:* Papule* Plaque* Wheal* Vesicle* Bulla* Nodule* Macule* Patch* Purpura* PustuleFor mnemonic lovers, the following mnemonic might help!"Predatory Poisonous Wasps Viciously Bit on the Nose of My Patient causing Purulent Pus"', 'role': 'assistant'}]