Carol Hathaway appears again in Season 15. She and Doug are now married and practice at the University of Washington Medical Center, where Carol is a transplant coordinator. During the episode, Carol and Doug help a grieving grandmother (Susan Sarandon) donate her grandson's organs. One of the organs, a kidney, is given to ''some doctor''; unbeknownst to both Doug and Carol it is their former co-worker and friend John Carter. While on the job she met two current employees at Chicago County General Hospital Dr. Neela Rasgotra and Nurse Manager Sam Taggart.
Answer this question, making sure that the answer is supported by the text: do carol and doug get married on er?

Possible answers: A. no; B. yes;
B.