An online retailer that makes its deliveries through a private shipping company has determined that, unlike before, now it can profitably begin making deliveries seven days a week, not just six days a week. Delivering a given number of shipments within a narrower window of time tends to be more cost effective, because, on average, delivery trucks will be able to exploit economies in their driving routes and will incur lower average shipping costs per dollar of delivered goods per hour. Nevertheless, the retailer expects profits to rise with the change.
Which of the following, if true, provides the best reason for the expectation?
【选项】
Due to a shift in consumer sentiment, the additional purchases that customers will be inclined to make by receiving their items marginally faster will outweigh the loss of savings of spreading shipments over a greater number of days.
选项是否正确？