You Have Just Been Hired as the New HR Director

You have just been hired as the new HR Director of your firm, and have received a complaint and summons served by the sheriff, relaying the lawsuit filed by a former employee. As you read through the complaint, you can see that the employee himself wrote it (and not a lawyer) , but think you recognize what your predecessor did wrong. It was this: ​

A) The employee alleges that he was offered a month's severance pay in exchange for a release of claims against the company.
B) The employee alleges he was never told why he was being fired, and thinks it was because he is Irish. He claims discrimination based on national origin.
C) The employee alleges he was only given 2 hours to clean out his desk, while a security guard watched.
D) The employee alleges he was called into the HR manager's office 4 times over the past 6 months, and given warnings that he was not performing satisfactorily. He alleges that this constitutes harassment.