Which of the following is NOT one of the psychological factors to control while driving?

Focus is indeed a crucial aspect of safe driving, as it refers to a driver's ability to concentrate on the road, traffic signals, and the behavior of other motorists. Maintaining focus helps prevent accidents and ensures that drivers react appropriately to changes in the driving environment.

In contrast, factors such as aggressiveness, assertiveness, and fatigue directly impact a driver's psychological state and can lead to unsafe driving behaviors. Aggressiveness can manifest as road rage or reckless driving, impairing judgment. Assertiveness, while sometimes beneficial, can also escalate confrontations on the road if it is taken too far. Fatigue considerably impairs cognitive functions, reflexes, and overall judgment, increasing the risk of accidents. Therefore, managing one's psychological state for safe driving involves recognizing and mitigating the effects of aggressiveness, assertiveness, and fatigue rather than focusing on maintaining concentration (focus) while driving.