What effect does smart duplexing have on HP Color LaserJet 4700 performance?

A.
limits toner used during duplex jobs

B.
accepts data from media sensor to detect whether or not the media can beduplexed

C.
does not duplex the last page of jobs containing an odd number of images (sides)

D.
decreases print speed, but also reduces engine cycle count from unnecessarily incrementing
ifsimplexing final page