Herb's Office Is Impeccably Organized

Herb's office is impeccably organized. Herb always shows up on time and can be counted to volunteer when someone is needed to go above and beyond usual duties. Herb says he will run the company someday, and he is willing to put in as many hours and as much suffering as it takes to get there. Herb exemplifies the personality trait of

A) neuroticism.
B) extraversion.
C) agreeableness.
D) conscientiousness.
E) openness to experience.