One of the Big Five personality factors is

A) reciprocal determinism.
B) secure self-esteem.
C) agreeableness.
D) self-serving bias.

The Big Five personality factors includes openness, conscientiousness, extraversion, agreeableness, and neuroticism. Choice A, reciprocal determinism, is a social-cognitive theory about the interaction between one's personality, behavior, and environment. Choice B, secure self-esteem, is not one of the Big Five personality factors. Choice D, self-serving bias, is a cognitive bias where individuals attribute their successes to their own abilities and their failures to external factors. Thus, the best choice is C, agreeableness, which describes an individual's tendency to be compassionate, cooperative, and considerate towards others.