Which trait involves being friendly and cooperative versus being reserved and distant?

The correct answer is agreeableness, as it encompasses traits that reflect a person's tendency to be friendly, compassionate, and cooperative in their interactions with others. Individuals who score high in agreeableness are typically warm, trusting, and helpful, making them more likely to engage positively with others and maintain harmonious relationships. This trait is crucial in team dynamics and organizational settings, where collaboration and understanding among colleagues enhance overall productivity.

In contrast, the other traits listed do not directly describe the inclination to be friendly and cooperative. Conscientiousness relates to an individual's level of responsibility, organization, and dependability. Extroversion pertains to an individual's level of energy and sociability; while extroverts are often outgoing, this trait doesn’t specifically address warmth or cooperativeness. Openness to Experience involves a person's willingness to engage with new ideas and experiences, focusing more on creativity and intellectual curiosity rather than interpersonal warmth. Thus, agreeableness is the trait that best captures the essence of being friendly and cooperative.