Who has the right of way at crosswalks?

Answer: B — Pedestrians

At crosswalks, pedestrians have the right of way. This is because they have the least protection and are the most vulnerable on the road. Motorists are required to stop for pedestrians at crosswalks, and they must wait for pedestrians to completely cross before proceeding. Disabled vehicles and bicyclists do not have any special right of way at crosswalks. While they may also use crosswalks, they must still follow traffic signals and yield to pedestrians. Therefore, the answer is B Pedestrians.