This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: JIPMER 2018, Subject name: Dental
[{'content': 'Tide water mark dermatitis is seen:- \nSelect and explain. \nA. Allergic contact dermatitis, B. Contact dermatitis to rubber used in disposable napkins, C. Band shaped papular dermatitis, D. Papulo-erosive ulcer', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Tide water mark dermatitis is a band shaped papular eruptions on the thighs and abdomen at the diaper edges, characteristically sparing the skin folds Variant of contact dermatitis.', 'role': 'assistant'}]