An example of an executive order is:

An executive order is defined as a directive issued by the President that manages the operations of the federal government and carries the force of law. These orders enable the President to direct government agencies and implement policies without the need for Congressional approval, as long as they fall within the scope of authority granted by existing laws or the Constitution.

This differs significantly from legislation passed by Congress, which requires a different procedure involving both the House and Senate and often involves significant debate and compromise. Supreme Court rulings, on the other hand, interpret law rather than create it, and state laws enacted by governors operate within the context of state governance rather than federal executive actions. Thus, the definition and purpose of an executive order make it a unique instrument of presidential power, which is why the directive issued by the President represents the correct choice in this context.