Which one of the Big Five personality traits has been associated with greater longevity

A)  agreeableness
B)  openness to experience 
C)  conscientiousness
D)  extraversion

Conscientiousness

A personality trait characterized by organization, responsibility, and dependability.

Big Five

A personality model that outlines five broad dimensions of personality: openness, conscientiousness, extraversion, agreeableness, and neuroticism.

Longevity

The length or duration of an individual's life, often used in contexts discussing factors that contribute to a long and healthy life.