You are driving up a hill and are approaching a heavy truck from the rear. You should know that:

Drivers must be aware that large vehicles often travel at a speed slower than the posted speed limit, especially when driving on an incline, and should use caution when approaching a large vehicle from the rear. When on a hill with limited visibility, it is unlawful to pass another vehicle.

• The truck may be traveling at a speed slower than the posted speed limit.
• You may not be able to safely pass the truck.
• You may not be able to legally pass the truck.
• All of the above.