Which of the following could result in liability for an employer even though the employee involved in the situation was an at will employee?
a. Termination of Abe, a store manager, in a way that inadvertently upset and embarrassed him.
b. Termination of Beatrice, a corporate sales executive, for no reason at all.
c. Termination of Celeste, a pharmaceutical sales representative, because she was pregnant and therefore unable to carry out all of her job duties during a brief period of time before her baby was born.
d. Termination of Dexter, a security guard, for refusing to carry out an appropriate order by the company's CEO.