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: Pathology
[{'content': 'Histologic sections of skin from an area of sunburn would most likely reveal: \nSelect and explain. \nA. Epidermal edema, B. Intraepidermal vesicles, C. Full-thickness epithelial necrosis, D. Partial dermal necrosis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: First-degree burns, such as with a sunburn, are mild and heal without scarring. Clinically, erythema is present, which is due to dilation of the capillaries in the dermis. Histologic sections of the skin would show epidermal edema and focal epithelial necrosis.', 'role': 'assistant'}]