The president can appoint cabinet secretaries, who are heads of federal departments. However, they cannot appoint state-level officials such as Supreme Court justices or governors, nor can they directly appoint members of the House of Representatives. This delineation is essential for maintaining the balance of power within government. ;
The president can appoint cabinet secretaries who lead federal departments, but cannot appoint state-level officials such as Supreme Court justices or governors. Additionally, vacancies in the House of Representatives are filled by election rather than presidential appointment. Thus, the correct answer is D. cabinet secretaries.
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