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: Radiology
[{'content': '1 curie is equivalent to: \nSelect and explain. \nA. 1.7 x 1010 disintegration/second, B. 2.7 x 1010 disintegration/second, C. 3.7 x 1010 disintegration/second, D. 4.7 x 1010 disintegration/second', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. (C) 3.7 x 1010 disintegration/secondRadiology by S. Bhadury 2ndl197:Writes:1 Bq= 1 disintegration/second1 Curie (Ci)= 3.7 x 10 (10) disintegration/second1 Ci is equal to 37 gigabecquerel1 gray (Gy) = 100 rads 10 mGy = 1 rad 1 mGy = 100 mrad Gray (Gy) is the SI unit of absorbed dose.One gray is equal to an absorbed dose of 1 foule/kilogram (100 rads).', 'role': 'assistant'}]