Which of the Following Statements Best Describes the Activities of a Whistle-Blower

Which of the following statements best describes the activities of a whistle-blower?

A) Mattel issued a statement apologizing for the 150 of the 10 million Power Wheels cars and trucks the company sold that had caught on fire.
B) Mattel research engineers proved that the spate of fires in the company's Power Wheels cars and trucks was the result of consumers' tinkering with the engine.
C) A former Mattel employee owned one of the Mattel Power Wheel cars that caught on fire and slightly burned its rider.
D) The Consumer Product Safety Commission investigated the fires and ordered a recall to repair all of the 10 million units that had been sold.
E) A Mattel employee reported to the Consumer Product Safety Commission that Mattel knowingly sold Power Wheels with an electrical system that could catch on fire after prolonged use.