C) is the correct answer. <u><em>The Constitution makes the President the chief administrator of the Federal Government.
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<em>The United States Constitution say in Article. II. - The Executive Branch Section 1 - The President</em> that:
<em>The Executive Power shall be vested in a President of the United States of America. He shall hold his Office during the Term of four Years…
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The President is the Chief of state, Chief executive, Chief administrator, Chief diplomat, Commander in chief, Chief legislator, Chief of party, Chief citizen
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As chief administrator, the President is in charge of the executive branch of the federal government, so he is in the top of the bureaucracy.