When are you allowed to pass on the right?

• When the road is clear of parked vehicles or other lane obstructions.
• When the road is narrow and congested.
• When passing on a paved shoulder while a vehicle is slowing or stopped on the main traveled portion of the highway.
• Both A and C.
  Explanation:

  "You may pass on the right when the road is clear of parked vehicles or other obstructions in the lane. You are also permitted to pass on a paved shoulder if the vehicle you are overtaking is slowing or stopped on the main traveled portion of the highway, provided it is safe and legal to do so."