After graduating from high school, Sue chose to attend college rather than join the work force. The opportunity cost of her decision is the money she would have made if she had chosen a job over school. Which statement represents a direct causal relationship? A. Sue's need for social interaction made her willing to bear the opportunity cost of going to college. . Sue's desire for a higher education made her willing to bear the opportunity cost of going to college. C. Because Sue had superior technical skills, she was willing to bear the opportunity cost of going to college. D. Because Sue had a superior grade-point average, she was willing to bear the opportunity cost of going to college