Under the federal system of government in the United States, the powers kept by the federal government are known as enumerated powers. These are specifically listed in the U.S. Constitution. Reserved powers, on the other hand, are those held by the states, while concurrent powers are shared by both the federal and state governments. Executive powers refer to the powers of the executive branch, primarily held by the President.
So, the correct response indicating the powers kept by the federal government is enumerated powers.