According to Campbell, Which of the Three Dimensions of Performance

According to Campbell, which of the three dimensions of performance are necessary components of every job?

A) demonstrating job-specific task proficiency, demonstrating effort, and maintaining personal discipline
B) demonstrating proficiency in written and oral communication tasks, maintaining personal discipline, and supervision
C) demonstrating proficiency in written and oral communication tasks, facilitating peer and team performance, and demonstrating effort
D) demonstrating effort, management/administration, and maintaining personal discipline