Final answer:
The President of the United States, as chief executive, enforces federal laws and has the authority to appoint key officials, with the Senate's approval.
Step-by-step explanation:
As chief executive, the President has the responsibility to enforce federal laws and also holds the power to appoint various officials within the government. The complete sentence for the student's question would be: 'As chief executive, the president enforces the federal laws and appoints members of the judiciary and executive officers excluding independent regulatory commissions, ambassadors, and other officials.' The President's power to appoint is subject to the approval of the Senate, which is the correct answer for the drop-down menu options given to the student.