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: Surgery
[{'content': 'Acquired symmetric hyper pigmentation of the sun exposed skin of the face and neck, which is strongly associated with pregnancy & use of oral contraceptives is called- \nSelect and explain. \nA. Melanoma, B. Cafe-au-lait spots, C. Freckle, D. Melasma', 'role': 'user'}, {'content': 'Answer: D \nExplanation: (Ref: Burket, Ed. 10th Pg-132) * Melasma or Cholasma describes the discrete patches of facial pigmentation which occur in pregnancy and in some women taking oral contraceptives. * This pigmentation is seen paicularly in periorbital and perioral region.', 'role': 'assistant'}]