What should drivers and passengers do before opening a vehicle door to avoid hitting a bicyclist?

• Only check the rear-view mirror
• Open the door quickly without checking
• Check both rear-view and side-view mirrors, and use the far hand to open the door
• Open the door with the nearest hand without looking
  Explanation:

  "Open vehicle doors pose a very serious threat to bicyclists. When opening a vehicle door, drivers and passengers should do the following: 1. Check your rear-view mirror. 2. Check your side-view mirror. 3. Open the door with your far hand (the hand farther from the door). This is called the Dutch reach method."