"The Essence of His Technique for Information-Gathering Was Competition

"The essence of his technique for information-gathering was competition.'He would call you in,' one of his aides once told me, 'and he'd ask you to get the story on some complicated business, and you'd come back after a couple of days of hard labor and present the juicy morsel you'd uncovered under a stone somewhere, and then you'd find out he knew all about it, along with something else you didn't know.Where he got this information from he wouldn't mention, usually, but after he had done this to you once or twice you got damn careful about your information.'" The person described in this passage is

A) Richard M.Nixon.
B) Franklin D.Roosevelt.
C) Lyndon B.Johnson.
D) Ronald Reagan.
E) Woodrow Wilson.