It would be under the "Office of Administration" that the chief of staff and press secretary reside, since both of these positions require the holders to have very close contact with the President.
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<span>Assuming that this is referring to the same list of options that was posted before with this question, <span>the correct response would be the book that was written by a veteran of the war itself, since this would be considered a "primary source". </span></span>