This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: X-RAYS, Subject name: Radiology
To improve contrast, KVP must be 
Select and explain. 
A. Increased, B. Decreased, C. Remain same, D. Contrast and KV P are not related at all.
B: Decreased
Answer: B: Decreased 
Explanation: - To improve contrast, KVP must be decreased. - KVP is Directly propoional to Energy of X-rays /Quality/Penetration powerand Inversely propoional to Contrast.