Final answer:
When encountering a severe dust storm, it is best to pull over safely and turn off lights to minimize the risk of accidents and increase safety. The correct option is C.
Step-by-step explanation:
When encountering a severe dust storm, the best course of action is to pull over safely and turn off your lights. This is because dust storms can significantly reduce visibility, and using high beams or driving at high speeds can actually worsen the situation by creating glare and increasing the risk of accidents.
By pulling over and turning off your lights, you minimize the chances of colliding with other vehicles and increase safety for yourself and other drivers on the road.
Hence, Option C is correct.