Traffic safety experts predict that the installation of newly designed seat belts in all cars in India would reduce the average number offatalities per traffic accident by 30%. In order to save lives, the Department of Transport (DOT) is considering requiring automobile manufacturers to install belts of this design in all cars produced after 2005.

Which of the following, if true, represents the strongest challenge to the DOT's proposal?

Belts of the new design are more given to being inadvertently triggered, an occurrence that can some times result in fatal traffic accidents.

The DOT is planning to require automobile manufacturers to produce these belts according to very strict specifications.

After installing belts in new cars, automobile manufacturers will experience an increase in sales.

The proposed belts installation program will adversely affect the resale of cars manufactured prior to 2005.