The Cabinet is the most explicitly political part of the White House in terms of advising the President. Members of the Cabinet provide direct counsel and influence decision-making related to government policy. In contrast, other bodies like the Executive Office of the President and the Office of Management and Budget have more specialized roles. ;
The Cabinet is the most explicitly political advisory group in the White House, consisting of the heads of executive departments who provide direct counsel to the President. Other groups, like the Executive Office of the President and the Office of Management and Budget, have more specialized functions and do not focus on broad political advice. Thus, the correct answer is 'a) Cabinet.'
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