A driver license is required for which of the following activities?

Answer: C — Both A and B.

The requirement for a driver license stems from the need for individuals to demonstrate knowledge of safe driving practices and to comply with traffic laws before engaging in activities that involve operating a vehicle. Sitting in the driver's seat of a car while the engine is running indicates that the vehicle is operational, and thus, the individual should possess a valid driver’s license to ensure they have the necessary skills and understanding to control the vehicle safely. This minimizes the risk of accidents or unintended use of the vehicle. Steering a car while it is being pushed or towed by another vehicle also requires a license since the individual is still involved in the operation of the vehicle, even if the primary power source is another vehicle. Having a valid driver’s license demonstrates that the person understands how to manage the vehicle, maintain control, and respond to any situation that may arise during the towing process. Both activities necessitate a driver license due to the inherent responsibility and potential consequences of maneuvering a vehicle, making it essential for safety and legal compliance.