On a freeway, when can you use the left lane besides passing other vehicles?

• When no other vehicle is directly behind you in the left lane
• When traffic conditions or obstructions make it difficult to drive in the right lane
• When changing lanes to yield to emergency or construction vehicles
• All of the above
  Explanation:

  "When driving on a freeway, a driver may not drive in the left lane(s), except when passing another vehicle. Exceptions include when: 1. No other vehicle is directly behind the vehicle being driven in the left lane. 2. Traffic conditions/congestion make it impractical to drive in the right lane. 3. Weather conditions make it necessary to use the left lane(s). 4. There is an obstruction or hazard in the right lane. 5. The driver is changing lanes to yield to emergency or construction vehicles."