Which of the following is appropriate to increase radiographic contrast while maintaining image density? a. Increase the kVp and increase the exposure time. b. Increase the kVp and decrease the...

Which of the following is appropriate to increase radiographic contrast while maintaining image density?

a. Increase the kVp and increase the exposure time.

b. Increase the kVp and decrease the exposure time.

c. Decrease the kVp and increase the exposure time.

d. Decrease the kVp and decrease the exposure time.