Answer:
The correct answer is C) Employment-at-will
Explanation:
Under the employment-at-will doctrine, employers can dismiss an employee for any reason as long as the reason is not illegal (for example, firing someone because of his race or sex, which would be illegal discrimination), and employees can leave the job at anytime at will. Under this doctrine, if you do not want to keep working, you just stop going to your job.
The benefit of this doctrine is that it gives more labor flexibility and avoids the existence of lawsuits. The con of this doctrine is that it reduces labor protections.