In a group ride, what should you do to maintain a tight formation?

Answer: C — Ride single file

Maintaining a tight formation during a group ride is crucial for safety and communication among riders. Riding single file is the correct practice, especially in situations where road conditions or traffic require better visibility and space management. This formation allows for easier maneuvering, reduces wind resistance, and decreases the chance of collisions caused by sudden stops or changes in position. While riding staggered can also be beneficial in certain circumstances—providing a bit more space between riders for safety—it's not as effective in ensuring a compact and orderly formation that single file offers. Riding in a zigzag pattern or side-by-side can lead to confusion, increase the chance of crashes, and disrupt the flow of the group. Thus, riding single file not only supports better control and awareness but also enhances overall group cohesiveness during the ride.