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

• Turn the steering wheel right to go right, and left to go left.
• Keep the steering wheel in the middle to go left.
• Keep the steering wheel in the middle to go right.
• Turn the steering wheel right to go left, and left to go right.
  Explanation:

  "When backing a trailer, the direction of the trailer's movement is opposite to the direction you turn the steering wheel. Therefore, turning the steering wheel right causes the trailer to move left, and turning the steering wheel left causes the trailer to move right."