What two skills are crucial for avoiding a crash while riding?

The correct answer highlights the importance of both stopping and swerving as essential skills for crash avoidance while riding a motorcycle. Stopping is crucial because it allows a rider to quickly reduce speed or come to a complete halt in response to an unexpected obstacle or hazard. Being able to stop effectively can prevent collisions with vehicles, pedestrians, or other obstacles that may appear suddenly in the rider's path.

Swerving, on the other hand, is an evasive maneuver that enables a rider to change their course rapidly to avoid potential dangers, such as a vehicle that may suddenly enter their lane or an obstacle in the roadway. Mastering this skill is vital, as it relies on quick reflexes and spatial awareness to navigate safely around hazards.

In the context of the other choices, while braking and turning may also be important, they are typically more associated with standard handling rather than immediate crash avoidance. Accelerating and slowing are aspects of controlling speed but do not directly address evading a crash scenario. Checking mirrors and signaling are essential for communication and awareness while riding, yet they do not serve as direct actions to avoid imminent crashes. Therefore, the combination of stopping and swerving provides riders with the crucial skills needed to react effectively in emergency situations.