In a study of varying task difficulty, researchers found that under threat to their perception of control,

A) most difficult task aroused Type B participants more than Type A.
B) the most difficult task aroused Type A participants more than Type B.
C) Type B participants were more aroused than Type A for all difficulty levels.
D) arousal levels did not differ between easy and difficult tasks.

Type A individuals are characterized by a high level of competitiveness, urgency, and aggressiveness. They are more likely to be aroused or stressed by challenging situations, such as difficult tasks, especially when their sense of control is threatened. This is because Type A individuals are more driven to maintain control and achieve success, making them more sensitive to challenges that threaten their ability to do so.