What is an independent agency?
a) an agency that was not created by a law passed by congress.
b) an agency whose budget comes from outside funding.
c) an agency that is not part of any cabinet department.
d) an agency that is not part of the government.
e) an agency entirely created by the president, independent of congressional action.

Option C.

Explanation:

An agency that is not part of any Cabinet department, is the right answer.

Those agencies of the federal government of the  United States that exist outside the national executive departments (those supervised by a Cabinet administrator) and  President's Executive Office, are known as the Independent agencies. In simple terms, this is a term used to describe those agencies that while legally portion of the executive branch, are autonomous of presidential authority, usually because the power of the president to remove the agency leader or a member is restricted.