Why is it important to stop at a distance behind a stopping school bus?

• The children will be able to get off and on without any tension.
• The vehicle driver will be able to help the children get on and off without any tension.
• Both A and B.
• So that drivers of other vehicles behind you can see the flashing lights and students crossing the highway.
  Explanation:

  "This distance allows drivers of other vehicles behind you to see the flashing lights and students crossing the highway."