.

Which of the following most logically completes the argument? In a typical year, Skyway Airlines’ aircraft are involved in 40 collisions while parked or being towed at airports, resulting in an annual repair cost of $1,200,000. To decrease the number of ground collisions, Skyway Airlines will start providing its ground crews with enhanced training, costing $600,000 per year. Although this training is expected to reduce ground collisions by approximately 50% at most, the reduction in repair costs is anticipated to be significantly higher, since __________.