You are approaching a railroad crossing with gates, red lights, and bells. The red lights have started to flash, but the gates are still open.

A. You should slow down and look for the train. If the train is still far away, you should drive across the tracks.
B. You should speed up a bit, to get across the railroad tracks before the gates start to close.
C. You must stop at the crossing. The gates will close soon, and it is against the law to drive around or under a gate that is closing, closed, or opening.