Answer:
The correct answer is letter "D": retaliation.
Step-by-step explanation:
Whistleblowers are individuals who report illegal or unethical practices of the firms they work for that does not necessarily affect the workers personally. Unfortunately, the companies tend to retaliate against those employees for exposing them through pay cuts or even termination of contracts.
Though, whistleblowers are covered by the Whistleblower Protection Act of 1989 which promotes employees to disclose firms' incorrect activities without fear.