When parking, at what point should you stop while steering all the way to the right when backing up toward the curb?

• Stop when the front of the vehicle has cleared the rear bumper of the vehicle in front.
  Explanation:

  "While backing up slowly and turning the steering wheel all the way to the right, stop when the front of the vehicle has cleared the rear bumper of the vehicle in front. Make sure the right back wheel has not hit the curb."
• Stop when the back of the vehicle has cleared the rear bumper of the vehicle in front.
• Stop when the back of the vehicle has cleared the front bumper of the vehicle in front.
• None of the above.