What should you do if you encounter a flash flood while driving?

Answer: B — Turn around and find a different route.

When encountering a flash flood while driving, turning around and finding a different route is the safest course of action. Flash floods can rise rapidly, and even a small amount of moving water can potentially sweep a vehicle away. It's essential to assess the situation calmly and avoid taking unnecessary risks. Driving quickly through the water can lead to loss of control, and waiting for the flooding to subside may not be feasible if the water is still rising. Ignoring warnings can put yourself and others in danger, as flash floods can occur with little warning, making areas suddenly perilous. Therefore, choosing to find an alternate route is the most logical and effective decision to ensure safety during such hazardous conditions.