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': 'The following morphologic changes is most consistent with allergic, rather than irritant, contact dermatitis \nSelect and explain. \nA. Lymphocytic exocytosis, B. Papillary dermal edema, C. Eosinophilic infiltration, D. Spongiosis', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Allergic form results from prior sensitization to specific allergens and\xa0 is accompanied by prominent eosinophilia, Spongiosis is common to\xa0 both allergic and non-allergic contact dermatitis.', 'role': 'assistant'}]