This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Radiotherapy Pa 2, Subject name: Radiology
Which Of the following statements is True? 
Select and explain. 
A. Intensity of Radiation decreases as a function of the distance from source of radiation, B. Intensity Of Radiation Increases as a function of distance from source of radiation, C. Intensity of Radiation decreases as a function of square of distance from source of Radiation, D. Intensity Of Radiation increases as a function of square of distance from source of Radiation
C: Intensity of Radiation decreases as a function of square of distance from source of Radiation
Answer: C: Intensity of Radiation decreases as a function of square of distance from source of Radiation 
Explanation: Inverse Square Law states that Radiation Dose is inversely propoional to the square of distance from the Source of Radiation