This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: CT SCAN, Subject name: Radiology
[{'content': 'CT SCAN was Invented By? \nSelect and explain. \nA. W.C. Roentgen, B. Godfrey Hounsfield, C. Henry Becquerel, D. Charles Dotter', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Sir Godfrey Hounsfield Invented CT SCAN/CAT SCAN/Computerised Axial Tomography in the year 1972. Sir Godfrey Hounsfield and Allan Cormack were awarded Nobel Prize for this Invention in 1979. SIR GODFREY HOUNSEFIELD', 'role': 'assistant'}]