Question

the president issues an executive order that directs federal agencies to strengthen cybersecurity measures to prevent future cyberattacks. this action demonstrates which key function of the executive branch?
overriding congressional decisions
declaring war as commander-in-chief
enforcing and implementing laws
approving the federal budget

Explanation:

The executive branch, led by the President, has the function of enforcing and implementing laws (and related policies like executive orders). Overriding congressional decisions is not a standard executive function; declaring war as Commander - in - Chief is more about military authority in a different context; approving the federal budget is a legislative or budgetary process function. Issuing an executive order to direct federal agencies to take action (strengthen cybersecurity) is part of enforcing and implementing policies/laws.

Answer:

enforcing and implementing laws