On a multi-lane highway, which lanes are designated for trucks and buses?

• The two left-hand lanes
• The two right-hand lanes
  Explanation:

  "Trucks and buses can only drive in the two right-hand lanes on a multiple-lane highway. They use the far right lane for normal travel and the second lane for passing. If you travel in the second lane, stay with the flow of traffic and do not drive below the minimum speed limit."
• The far left lane
• None of the above