What restriction applies to riders with a motorcycle instruction permit?

Answer: A — Cannot ride after dark

Riders with a motorcycle instruction permit are restricted from riding after dark. This rule is in place to enhance safety for individuals who are still in the learning phase of motorcycle operation. Riding at night presents additional challenges, such as reduced visibility and more difficult navigation of road conditions. By prohibiting nighttime riding, the regulation aims to allow new motorcyclists to gain experience and confidence during daylight hours, when there is more visibility and a higher likelihood of avoiding dangerous situations. The other options involve conditions that either contradict the learning phase of an instruction permit or do not align with safety regulations for novice riders.