What should you do if a rider in the back of the group falls behind?

Answer: C — Slow down for everyone to regroup

If a rider in the back of the group falls behind, slowing down for everyone to regroup is the best course of action. This approach ensures that the safety of all riders is maintained, as riding at a pace that accommodates everyone prevents isolated situations that could lead to accidents or confusion. Keeping the group together promotes better communication and allows all riders to navigate the road as a cohesive unit. It also reduces the risk of the trailing rider becoming lost or overwhelmed, as they are given the opportunity to catch up without pressure to speed excessively. This is especially important in group riding scenarios where safety and mutual support are key. In contrast, the other options present safer riding practices. Ignoring a fallen behind rider could leave them vulnerable, while advising them to ride faster might encourage risky behavior. Speeding up to wait for them could create dangerous situations, especially if the pace becomes too fast. Thus, slowing down for everyone to regroup is both a supportive and safe decision for all riders involved.