In which of the following situations is passing permitted?

• When you are on a roadway having two or more lanes in the same direction.
• When you are on a roadway with more than one lane and is restricted to one-way traffic.
• When an obstruction on the roadway makes it necessary to drive to the left of the centerline.
• All of the above.
  Explanation:

  "Passing is permitted when: 1. An obstruction makes it necessary to drive to the left of the centerline, but only after yielding to oncoming traffic. 2. A roadway includes two or more marked lanes in the same direction. 3. A roadway with more than one lane is restricted to one-way traffic."