Based on a rigorous analysis of the philosophical, biological, and psychological determinants of Hans Eysenck's Three-Factor Model of Personality—specifically the dimensions of Extraversion, Neuroticism, and Psychoticism—if an individual exhibits extreme emotional stability, socially adapted behavior, impulse control, and a calm disposition, which of the following statements is most authentically true regarding Eysenck's hierarchical trait paradigm and its biological basis?

Understanding Eysenck's PEN Model

According to Hans Eysenck's theory of personality, Neuroticism and emotional stability are directly related to the reactivity of the Autonomic Nervous System (ANS). Individuals with low neuroticism (high emotional stability) show a lower physiological reactivity to stress.

• Autonomic Nervous System (ANS): Low neuroticism correlates with a less reactive ANS, leading to better stress management and emotional control.
• Biological Basis: Eysenck emphasized genetic and biological underpinnings, rejecting the notion that personality is solely shaped by environmental factors.

Conclusion: Option A correctly identifies the physiological and psychological correlate of emotional stability within Eysenck's framework.