What is the purpose of “bike boxes” on the road?

• They help prevent collisions between motorists and bicycles.
  Explanation:

  "Bike boxes are painted areas at intersections designed to reduce collisions between motorists and cyclists. These boxes allow cyclists to position themselves ahead of motor vehicles at a stoplight, improving visibility and safety."
• They provide parking for bikes and bicycles.
• They provide lanes for bikes and bicycles.
• None of the above.