The correct answer is Type A personality.
Type A personality is characterized by traits such as being highly ambitious, driven, organized, impatient, highly punctual, competitive and sometimes slightly pushy or aggressive. Caitlyn's behavior and characteristics seem to match the characteristics of Type A personality. Melancholic type is incorrect since it means a sad, subdued and lethargic person. Type B is also incorrect since it refers to a more relaxed and laid-back personality type. Type Z is a made up term when referring to personality types.