Final answer:
Self-discipline is a good predictor of school success and often better than IQ test scores.
Step-by-step explanation:
The answer to the question is B. Self-discipline is a good predictor of school success and is often better than IQ test scores. When a student has self-discipline, they are able to manage their time effectively, set goals, and stay motivated to complete their assignments and study. This can lead to better performance in school, even when compared to students with high IQ scores but lacking self-discipline.
Learn more about Self-discipline