What challenge do motorcyclists face when traveling at night?

Answer: B — More difficulty in judging distances

Traveling at night presents unique challenges for motorcyclists, particularly in the area of judging distances. At night, the lack of natural light can make it harder for riders to accurately gauge how far away objects are, including other vehicles and obstacles on the road. This difficulty can affect a rider's ability to safely navigate turns, merges, and other maneuvers, potentially leading to unsafe decisions. In addition, while visibility issues and the presence of wildlife can be concerning at night, the core challenge lies in the rider's ability to accurately judge distances due to reduced lighting conditions. This challenge demands heightened awareness and caution from motorcyclists to ensure their safety on the road.