This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Dental
Cutis marmorata occurs due to exposure to - 
Select and explain. 
A. Cold temperature, B. Dust, C. Hot temperature, D. Humidity
A: Cold temperature
Answer: A: Cold temperature 
Explanation: * Cutis marmorata is a condition where in the skin has a pinkish blue mottled or marbled appearance when subjected to cold temperatures. * It is seen throughout infancy and in 50 % of children. * Rewarming restores the skin to normal. * It is caused by superficial small blood vessels in the skin dilating and contracting at the same time . REF : THOMAS HABIF 6TH ED