This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Dermatitis Erythema, Subject name: Skin
[{'content': 'Most common cause of air borne contact dermatitis is? \nSelect and explain. \nA. Parthenium hysterophorus, B. Poison ivy, C. Poison oak, D. Pollen', 'role': 'user'}, {'content': 'Answer: A \nExplanation: ANSWER: (A) Parthenium hysterophorusREF: Neena khanna 3rd ed p. 86-89Most common cause of:Allergic contact dermatitis due to metal: NickelAllergic contact dermatitis in Indian females: On hands is detergents, on forehead is para tetra butyl phenol in bindi, ear lobule is nickelAir borne contact dermatitis and plant dermatitis is: Parthenium hysterophorousAllergic contact dermatitis due to cosmetics : Balsam of peruAllergic contact dermatitis due to drug: Neomycin', 'role': 'assistant'}]