When backing up a trailer, which direction should you turn the steering wheel?

• Turn the steering wheel right to move the trailer right, and left to move it left.
• Keep the steering wheel centered to move the trailer left.
• Turn the steering wheel right to move the trailer left, and left to move it right.
  Explanation:

  "Steering in the opposite direction of where you want the trailer to go is necessary when backing up, as trailers respond inversely to the direction of the steering. So, you must turn the steering wheel right to move the trailer left and left to move it right."
• Keep the steering wheel centered to move the trailer right.