What Is "Employee Silence

What is "employee silence"?

A) A company's culture frowns on any admission of or appearance of talk about unethical conduct.
B) Employees at a company have an unspoken agreement not to speak about unethical behavior with managers.
C) An employee who has suffered from unethical treatment by another refuses to report the incident.
D) An employee witnesses ethical misconduct but discusses it with no one involved or with authority to address it.