Radiology Interview Question:

if the operator wants to change from the long-scale (low contrast) film technique to a short-scale (high contrast) film technique and maintain the same density of the film, what should be done?
a. decrease kVp and the mA
b. decrease the kVp and increase the mA
c. increase the kVp and the mA
d. increase the kVp and decrease the mA
e. increase the kVp and use the same mA