As you approach a set of traffic lights at an intersection, they change from green to yellow (amber). You must:

• A. Stop before the lights, unless you are so close that sudden braking might cause an accident.
  Explanation:

  "You must stop for a yellow amber light unless doing so would cause an accident."
• B. Drive through the intersection without accelerating.
• C. Accelerate to clear the intersection before the lights change to red.