Motorcycle groups larger than ____ people should split into smaller groups.

Answer: C — 5

Groups larger than 5 people can create challenges when riding together, resulting in unsafe conditions and difficulty maneuvering as a group. Smaller groups allow for better communication and a safer ride for all members. Options A, B, and D are all too small, which could result in shorter or incomplete rides and difficulties when trying to coordinate stops and destinations. Therefore, Option C is the best choice for a group size limit for motorcycle groups.