This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nuclear Medicine, Subject name: Radiology
[{'content': 'Definition of nuclear medicine includes which of the following? \nSelect and explain. \nA. Field of medicine helpful for radiotherapeutic management of all., B. Field of medicine, which provides both physiological, & structrual information in non-quantifiable form., C. Field of medicine helpful for location & extent of cancer but with many hazards., D. Field of medicine which depends on accretion, transit & disappearance of radioactive tracer in specific regions of body & useful in management of cancer.', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. d (Field of medicine which depends on accretion, transit & disappearance of radioactive tracer in specific regions of body & useful in management of cancer). (Ref. Modem Trends in Radiotherapy by Deeley, 216)# Nuclear medicine is the field of medicine which depends on accretion, transit & disappearance of radioactive tracer in specific regions of body & hence useful in management of cancer.# It provides both physiological and structural information in a quantifiable form.# It is helpful for location and extent of cancer without much hazards & discomfort to patient.', 'role': 'assistant'}]