Julio is extremely dependable and productive, and his friends think he is great at organizing events.
Based on the five-factor model of personality, Julio would probably score:

a. High in openness.
b. Low in neuroticism.
c. High in conscientiousness.
d. High in agreeableness.

c. High in conscientiousness

Explanation: Together with neuroticism, openness, extraversion and agreeableness, CONSCIENTIOUSNESS makes us the big five factor model or personality trait. Conscientiousness is a personality trait assigned to an individual who is both dependable and productive. Very careful about what he or she does and does it extremely well. In every engagement, they tend to put in their best as conscientious individuals usually possess a urge or desire to do well and always seem to reap the reward of their diligence. Their productivity can be attributed to careful and organized ways of performing their task rather than erratic approach in tackling duties.