Which setting is better for an x-ray of a part of the body with low contrast between tissues, like the abdomen? A - High kilovoltage (kVp); Low milliamp-seconds (mAs) B - High kilovoltage (kVp); High milliamp-seconds (mAs) C - Low kilovoltage (kVp); High milliamp-seconds (mAs) D - Low kilovoltage (kVp); Low milliamp-seconds (mAs)