Which of the following might be used as supportive evidence that cell phones are dangerous to use while driving a car?

A. A study conducted by University of Utah psychologists shows that motorists who talk on cellular phones are as impaired as drunken drivers.

B. According to the Harvard Center for Risk Analysis, a driver using a cell phone is 80 percent less likely to be killed than a drunk driver.

C. Molly Herrington, an opponent to banning cell phone use while driving, states, "Talking on my cell phone keeps me sane in traffic."