What does this traffic light indicate when flashing?

• Drivers must come to a complete stop and proceed when safe.
• Drivers should speed up and pass through the intersection quickly.
• Drivers should proceed with caution.
  Explanation:

  "A flashing yellow traffic light means proceed with caution. Drivers can go through the intersection but should yield to pedestrians and other vehicles as needed."
• Drivers must yield to pedestrians and other vehicles.