Final answer:
A client with high self-discipline and consistency aligns with the conscientiousness trait within the Five-Factor Model of personality. The correct option is 2.
Step-by-step explanation:
A client who exhibits self-discipline and consistency BEST aligns with the Five-Factor Model personality trait of Conscientiousness. Conscientiousness is one of the Big Five personality traits and is characterized by a high degree of organization, efficiency, and a goal-directed behavior.
Individuals who are high in conscientiousness are typically diligent, reliable and have a strong sense of duty. They are methodical, well-organized, and able to maintain long-term focus on their goals and tasks.
It is important to note that while clients who display self-discipline and consistency are closely associated with conscientiousness, neuroticism, extraversion, agreeableness, and openness are the other four traits that comprise the Five Factor Model but are less relevant in this context. The correct option is 2.