The office of the president is part of what

The office of the president is part of executive office

Explanation:

The cabinet of the USA is composed of the main positions of executive power of the federal government, an existence designated by President George Washington. The members of this cabinet are nominated by the current president and presented to the Senate to be approved and subsequently approved.

Because of this, the president's office is part of the executive office of the United States.

a is the final ! : )