(A). Driving the speed limit.
(B). energy of moving objects.
(C). Greenhouse gases.
(D). Using turn signals.
(E). fossil fuels.
(F). smoking cigarettes.
(G). Keeping their eyes on the road.
(H). Using a cell phone.

Fact 1: Being distracted while driving can cause people to crash their car. Fact 2: Cell phones are a distraction to driving. Given the two facts above, what can cause people to crash their car?
Answer:
(H).