Answer the multiple-choice question about main idea based on the content of the paragraph below.

Question

According to the Insurance Institute for Highway Safety, 22 percent of all traffic accidents in the United States are caused by drivers running red lights. Every year, these accidents kill some 800 people and rack up an estimated $7 billion dollars in property damage, medical bills, lost productivity and insurance hikes. To curb this trend, more and more cities are installing red-light cameras. These fully automated devices collect all of the evidence authorities need to prosecute light-runners. If a camera catches you speeding through the intersection, you can expect a ticket (along with a photograph of the violation) to arrive in your mailbox a month or two later. In some states, a ticket is issued to the car’s owner, no matter who is actually driving. In these states, the red-light camera only needs to photograph the car from behind, since authorities only need a clear view of the rear license plate. In other states, the driver is responsible for paying the ticket. In this case, the system needs a second camera in front of the car, in order to get a shot of the driver’s face. Twelve states use red-light cameras. The only state that has rescinded them is Virginia.

The best statement of the main idea is that

a. eight hundred persons die in accidents at red lights every year.
b. few states utilize red-light cameras because of the high cost of installation.
c. due to the relatively high percentage of accidents at red lights, some states have instigated the use of red-light cameras.

Answer 1

c. due to the relatively high percentage of accidents at red lights, some states have instigated the use of red-light cameras.