In the absence of a traffic signal, when is it obligatory for vehicles to stop for pedestrians in a crosswalk, marked or unmarked?

• When the pedestrian is on the same half of the roadway as the vehicle
• When the pedestrian is approaching from the nearest lane on the opposite half of the roadway
• When the pedestrian is on the half of the roadway onto which the vehicle is turning
• All of the above
  Explanation:

  "Even in the absence of a traffic signal, the driver of a vehicle must stop and remain stopped to allow a pedestrian to cross the roadway within a crosswalk when the pedestrian is on the half of the roadway that the vehicle is traveling on, or when the pedestrian is approaching and is within one lane of the half of the roadway that the vehicle is traveling on or turning onto. 'Half of the roadway' refers to all traffic lanes carrying traffic in one direction of travel."