What will happen starting on Monday?

Choices:
A. Carsie will go to Hawaii
B. not enough information
C. New doctor will join the team
D. Macy will date Elmo
New doctor will join the team
Macy Golong peeked into Mallie Mae's room and was not surprised to see her sleeping. Elmo's mother rarely stayed up past 10:00 PM, and it was nearly 11:00. She closed the door and started to go back to her room across the hall. She was halfway through a romance novel. But Hadley's delicious oatmeal raisin cookies were calling to her.
She walked down the stairs to the kitchen and put a few cookies on a plate. Then she poured a glass of milk. She wondered what Elmo was doing. Was he in the Media Room with Carsie? Their Media Room? Before Elmo and Carsie got together, Elmo and Macy used to spend hours almost every night in that room. Some nights he had almost kissed her.
She left her milk and cookies on the kitchen counter and went down another flight of stairs, which came out in the Recreation Room. Macy could hear the sound of the TV coming from Media Room. She tiptoed to the open doorway and peeked in. There she was--that conniving slut--sitting where Macy should have been. How could Elmo have replaced her like that? She thought he had been falling in love with her. How could she have been so wrong? But it could still happen--if that woman would just go away.
Elmo said, "Yeah. So, beginning Monday there will be two doctors in the office. That should take a little pressure off. If I need to be out for a day or two, Dr. Edwards can fill in for me."
"Yeah, or if you need to take off a week for a trip to Hawaii with your beautiful new wife." Carsie gave him a sexy smile.
"That's right. Dr. Ernie will take care of everything while I'm gone."
"Dr. Ernie?"
"Yeah. I asked if he would mind being called 'Dr. Ernie'. His name is Ernest, but I thought 'Dr. Ernie' would fit in well with the Sesame Street theme of my office."
"So the two of you are Drs. Elmo and Ernie?"
"Yep."