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

A driver license is required in both scenarios described. When sitting in the driver's seat of a car while the engine is running, the individual is considered to be in control of the vehicle, even if they are not moving it themselves. This is important for safety and legal accountability, as driving involves being prepared to operate the vehicle under varying circumstances.

Similarly, steering a car while it is being pushed or towed by another vehicle requires a driver license as well. The person in control of steering the vehicle must be licensed because they are responsible for navigating the vehicle safely, even if it is not under its own power.

Both actions imply a level of responsibility and control over the vehicle, which is why a valid driver license is necessary in these situations.