Select the Technique That Would Produce a Film with the Highest

Select the technique that would produce a film with the highest contrast on an AP lumbo-pelvic projection.

A) 300 mA, .05 second, at 90 kVp
B) 300 mA, .15 second, at 75 kVp
C) 300 mA, .1 second, at 80 kVp
D) 300 mA, .06 second at 85 kVp
E) 300 mA, .03 second, at 100 kVp