How should the leader and the second rider take positions in the staggered formation?

• The leader should ride in the right lane position, while the second rider stays one second behind in the right lane position.
• The leader should ride in the left lane position, while the second rider stays one second behind in the left lane position.
• The leader should ride in the left lane position, while the second rider stays one second behind in the right lane position.
  Explanation:

  "On a two lane highway, the leader should ride in the left lane position, while the second rider stays one second behind in the right lane position."
• None of the above