To win a presidential appointment, some potential high-ranking candidates will copy the president's views. Option D is correct.
According to the United States Office of Government Ethics, a political appointee refers to "any employee who is appointed by the President, the Vice President, or agency head".
In an attempt to win a presidential appointment, it is necessary for a potential high-tanking candidate to show that he or she shares the stance of the president pertaining to the issues of further concern.