Which of the following is a rule for pedestrians to follow?

• They must not walk on the roadway if a sidewalk is available.
• They must cross the road at intersections or at designated crosswalks.
• They must yield the right-of-way to vehicles if crossing a roadway at any point other than within a crosswalk.
• All of the above
  Explanation:

  "Pedestrians must follow specific rules: 1) They must not walk on the roadway if a sidewalk is available. 2) They must cross the road at intersections or designated crosswalks. 3) They must yield the right-of-way to vehicles if crossing a roadway at any point other than within a crosswalk."