Need help with this linear regression question

Question 2 Many researchers at colleges across the country study college entrance exam scores. One researcher is trying to see if she can predict students' SAT scores from their explanatory variable ACT scores. A linear regression was fitted to a data collected from 6D entering freshmen who had taken both college entrance exams. In the linear regression analysis, coefficient of determination came out to be r2 =D.667. Which of the following is the correct interpretation of r2? C} The 66.7% of the variation in the predicted values of ACT scores can be explained by the linear relationship with SAT scores C} The 66.7% of the variation in ACT scores can be explained by the linear relationship with SAT scores C} The 66.7% of the variation in SAT scores can be explained by the linear relationship with ACT scores C} The 66.7% of the variation in the predicted SAT scores can be explained by the linear relationship with ACT scores