Ack discovers that his employer is dumping dangerous chemicals into the river rather than disposing of them correctly. when management refuses to listen to his concerns, he contacts the environmental protection agency to report the firm's conduct. this is an example of

This is an example of whistle blowing, in which an employee of an organization informs the public of a wrongdoing by its organization. Due to the potential negative consequences to the employee who reports her organization's wrongdoing, there are laws in many countries to protect whistle blowers. 

Icould be wrong but i would say b.