Len is an at$-$will employee of Norm Mart. Len is told by his employer to falsify client records. Len refused and he told government authorities what had happened. He was then fired.

Later files a lawsuit against Norm Mart and wins. Given that Len is an employee at$-$will, this is

an example of employee at will

an exception to the law of employment at will, based on contract theory.

an exception based on public policy.

an exception based on torts