What does a red traffic light mean for a motorcycle rider?

Answer: B — Stop and wait for the green signal

A red traffic light indicates to a motorcycle rider that they must stop and wait for the green signal before proceeding. This is an essential rule of the road that helps maintain order and safety in traffic. When any vehicle, including motorcycles, encounters a red light, it is legally required to come to a complete stop at the designated stop line or before entering the intersection. This allows other vehicles and pedestrians the opportunity to cross safely and helps prevent accidents. Following this rule is crucial for ensuring a safe riding experience and abiding by traffic laws.