Before you ride, which of the following should you check?

Answer: B — Lights, tires, chassis

Before riding a motorcycle, a comprehensive pre-ride check is essential for safety and performance, and checking the lights, tires, and chassis is a critical component of that process. Inspecting the lights ensures that all signaling devices and headlights are functioning properly, which is vital for visibility and communication with other drivers. Tires must be checked for appropriate pressure and tread depth to prevent blowouts and ensure maximum grip on the road. The chassis, which includes the frame and suspension components, should be examined for any signs of damage or wear that might affect stability and control during the ride. Other options, while they include important checks, do not encompass the breadth of critical safety concerns that checking the lights, tires, and chassis does. For instance, while evaluating gas levels and oil color is important for engine performance, it doesn't directly influence the immediate safety of the ride as much as the operational condition of the motorcycle's systems does.