631.A large truck is traveling in the slow lane on a downhill slope in rainy weather with poor visibility. Thecargo has a high center of gravity and slightly extends beyond the rear of the vehicle. Ahead is a narrowtunnel exit and an intersection. Nearby pedestrians and motorcyclists are approaching. As the driver,what is the most appropriate course of action?
(A) Reduce speed to below the minimum speed limit of theslow lane, maintain lane position, watch for off-tracking, blind spots, give priority to pedestrians, ensurecargo is secure, and be ready to stop at any time.
(B) Maintain the slow lane speed limit and only payattention to traffic from behind.
(C) Sound the horn to alert surroundings, then pass through thehazardous area quickly to maintain smooth traffic flow.