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: Unknown
[{'content': 'Cutis marmorata occurs due to exposure to- \nSelect and explain. \nA. Cold temperature, B. Dust, C. Hot temperature, D. Humidity', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ref. Rook's Textbook of Dermatology, Pg 99\n\xa0\nCutis Marmorata\n\nSkin has a pinkish blue mottled or marbled appearance when subjected to cold temperatures.\nIt occurs in about 50% of children and is typically seen throughout infancy.", 'role': 'assistant'}]