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: Dental
The resolution of IOPA is about: 
Select and explain. 
A. 10 Lp/mm, B. 16 Lp/mm, C. 28 Lp/mm, D. 30 Lp/mm
B: 16 Lp/mm
Answer: B: 16 Lp/mm 
Explanation: The resolution of IOPA is 16 lines pair/millimeter.