When encountering a Deer Crossing sign, drivers must be alert for what?

When drivers see a Deer Crossing sign, it serves as a warning that deer may be present near or on the roadway. The sign indicates that areas where deer are likely to cross can be dangerous, particularly during dawn and dusk when deer are most active. Being alert for deer means watching for unexpected movements that might indicate they are about to enter the road, allowing the driver ample time to react and avoid a potential collision.

This understanding is crucial because the consequences of hitting a deer can be severe, not only for the deer but also for the vehicle occupants. The other options, while they might be present in driving scenarios, do not specifically pertain to the immediate concern raised by a Deer Crossing sign. Therefore, acknowledging the correct context regarding deer movements helps ensure safety on the road.