Answer:
The Cabinet.
Explanation:
The Cabinet is a part of Department of Executive Branch of the Government of the United States. The Cabinet constitutes the officers such as the Vice-President and Supervisors of 15 branches which includes Health, Agriculture, Education, Defense, etc.
Apart from the Vice-President, all other members of the Cabinet are nominated and appointed by the President 'at the pleasure of the President.' 'At the pleasure of th President' is a power bestowed to the President according to the Article 2 of the Constitution of the United States. It gives right to the President to appoint leading mens over these branches and also dismiss them without giving any reasons at any given point of time.
So, the person who is appointed by the President is the Cabinet.
