A Firm Has Found That It Provides a 90 Percent

A firm has found that it provides a 90 percent order fill rate (orders shipped complete) ,90 percent on-time delivery,90 percent of its orders arrive at customers' destinations in perfect condition,and 90 percent of the time all documentation is correct.These are all of the elements of a perfect order for this company's customers.What is the best estimate of its perfect order performance?

A) 90 percent
B) 60 percent
C) 0 percent
D) 66 percent