Answer: She fires Abigail as her housemaid.
Step-by-step explanation:
John Proctor was Elizabeth Proctor's husband and was a local farmer. He had an affair with Abigail Williams who was the niece of Reverend Parris and also their housemaid.
Elizabeth Proctor who was John's wife eventually got to know about the secret and then firemed Abigail. Therefore, the correct option is D.