Catherine works for BluCorp, which has an employee handbook stating that employees will be terminated for good cause. Catherine's manager fires her one morning and when asked the reason, states that he does not need a reason since they live in a state that has employment at will. If Catherine wins her lawsuit against BluCorp, it is because of the:
a. public policy exception to employment at will.
b. contract exception to employment at will.
c. tort exception to employment at will.
d. illegal termination statute.