What should motorcyclists do before making a lane change?

Answer: B — Signal and check blind spots

Before making a lane change, motorcyclists should signal and check blind spots. This practice is essential for ensuring their safety and the safety of others on the road. Signaling informs other drivers of the motorcyclist's intention to change lanes, allowing them to react appropriately. Additionally, checking blind spots is crucial because mirrors do not always provide a complete view of the road. There could be vehicles, particularly smaller ones, that may not be visible in the motorcycle's mirrors. By taking the time to both signal their intent and verify that the space is clear in all directions, motorcyclists can help prevent accidents and maintain a safer riding environment. Looking for nearby cars, checking just the mirrors, or speeding up does not account for the full picture needed for a safe lane change, as these actions may lead to missed hazards or unsafe maneuvers on the road.