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
Maximum dose of radiation which is considered safe for human in a year is: March 2010 
Select and explain. 
A. 5 Rads, B. 10 Rads, C. 15 Rads, D. 20 Rads
A: 5 Rads
Answer: A: 5 Rads 
Explanation: Ans. A: 5 Rads