What actions should a driver take when approaching a stop sign?

Answer: B — Look left, right, and then left again before proceeding.

When approaching a stop sign, the most appropriate action for a driver is to look left, right, and then left again before proceeding. This thorough scanning of the intersection allows the driver to check for any oncoming traffic, pedestrians, or other potential hazards that may not be immediately visible. It's critical for ensuring safety, as traffic approaching from different directions may not always be easily seen. The practice of looking left first, followed by right, and then left again is especially important because it helps the driver assess the flow of traffic from all directions. This three-step check increases awareness and prepares the driver for any potential dangers before they continue through the intersection. In contrast, speeding up to pass quickly can lead to dangerous situations, as it reduces reaction time and increases the likelihood of accidents. Only looking left is inadequate because it neglects the potential dangers coming from the right side, where vehicles or pedestrians may be present. Simply stopping and going does not take into account the need for awareness of the surroundings, which can lead to collisions if other vehicles or pedestrians are in the intersection. Therefore, a systematic approach to checking for safety before proceeding is essential when encountering a stop sign.