⟩ 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 mAb. decrease the kVp and increase the mAc. increase the kVp and the mAd. increase the kVp and decrease the mAe. increase the kVp and use the same mA