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
Use of an angled target in the X-ray tube 
Select and explain. 
A. Increases penetrating power of X-rays, B. Reduces penetrating power of X-rays, C. Increases image sharpness, D. Reduces image sharpness
C: Increases image sharpness
Answer: C: Increases image sharpness 
Explanation: None