Which of the Following Would Eliminate a Potential Diagnosis of Cyclothymia

Which of the following would eliminate a potential diagnosis of cyclothymia?

A) Gil had been showing both hypomanic and depressed symptoms for over three years.
B) Carol was absolutely convinced that her mother wanted to kill her, although there was no evidence for this.
C) Bob's most recent hypomanic episode lasted 3 days.
D) Between her more recent episodes, Carla functioned quite well for 3 weeks.