Which of the Following Statements About Whistle-Blowing Is MOST Accurate

Which of the following statements about whistle-blowing is MOST accurate?

A) It is a common practice and one of the most consistent checks on executive abuse.
B) While whistle-blowing is a theoretical possibility, there are no instances of it in American history.
C) Congress has offered financial rewards to whistle-blowers in some instances.
D) Most civil servants view whistle-blowing as an excellent career move that will help them jump several GS grades.
E) In order to maintain smoothly-functioning bureaucracies, Congress has made most instances of whistle-blowing illegal.