Which personality type is described as competitive, driven, hostile, and ambitious?

The personality type characterized as competitive, driven, hostile, and ambitious is known as Type A personality. This classification was developed in the context of a study on coronary heart disease by cardiologists Friedman and Rosenman in the 1950s. Type A individuals often display high levels of urgency, impatience, and a strong sense of time pressure, which can lead to stress and related health issues. They are typically very goal-oriented, striving for achievement and success, which aligns closely with the descriptors of being competitive and ambitious.

In contrast, other personality types mention different traits. For example, Type B personalities are generally more relaxed and less stressed about time management, while Type C personalities are often associated with being detail-oriented and averse to conflict but are not defined by competitiveness. Type D personalities tend to experience negative emotions and social inhibition but lack the drive and aggression seen in Type A individuals. Thus, Type A is the only choice that aligns well with the specific combination of traits listed in the question.