27. With respect to operational performance, most logistics managers would prefer which of the following:

Question options:

	a)A consistent #-days performance cycle, for which "#" can be any specific number of days.
	b)A performance cycle that averages #-days, with a range of 1 day to four days.
	c)A performance cycle that averages X-days, but ranges from 1 day to #-days.
d)	A five-day performance cycle with 95 percent certainty.
e.	A two-day performance cycle with 80 percent certainty.