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
Disadvantages of using a GRID during radiography is: 
Select and explain. 
A. Increased patient exposure due to more exposure time, B. Decreased exposure time, C. Increased secondary radiation fog to film, D. Reduces secondary radiation to film
A: Increased patient exposure due to more exposure time
Answer: A: Increased patient exposure due to more exposure time 
Explanation: None