Final answer:
The president's cabinet is composed of the heads of the executive departments, who act as key advisors and assist in policy implementation. The secretaries are appointed by the president and confirmed by the Senate.
Step-by-step explanation:
The president's cabinet includes a key group of advisors made up of the heads of the executive departments. The cabinet is tasked with advising the president on various policy areas and assisting with the implementation of policy initiatives and the execution of laws. As detailed in historical context and current practice, the secretaries who make up the cabinet are appointed by the president and confirmed by the Senate. The cabinet plays a critical role in the executive branch and serves under the direction of the president.