In a group of motorcycles riding in a staggered formation, where should the second rider be positioned?

1. In the right track of the lane, at least 1 second behind the leader
2. Directly behind the leader in the left track, at least 1 second behind
3. In the right track of the lane, side-by-side with the leader
4. In the left track of the lane, 2 seconds behind the leader