Rick's hunger to accomplish all that he can by setting high standards for his performance, probably means that he has a high need for D. Achievement.
When a person has a high need for achievement, they will devote as much time and energy as they can to their various ventures.
Rick in this case, has a high need for achievement because he is giving all his time and energy to school so that he may accomplish his goals.
In conclusion, option D is correct.
Find out more on motivational needs at https://brainly.com/question/5517160.