What should you do when passing a truck on a downhill grade?

• Pass quickly and maintain your speed
  Explanation:

  "When passing a truck on a downhill grade, it's important to pass quickly and maintain your speed. Trucks can gain speed rapidly due to gravity, and their braking capabilities are limited on downhill slopes."
• Pass slowly and reduce your speed after passing
• Stay alongside the truck for a while
• Make the truck driver brake by slowing down