Which of the Following Statements Is True Regarding the Sources

Which of the following statements is true regarding the sources of variation present in an analysis of regression?

A) Regression variation measures variability in X, whereas residual variation measures variability in Y.
B) The closer that data points fall to the regression line, the more the variance in Y will be attributed to regression variation.
C) There are three sources of variation in an analysis of regression: regression variance, residual variance, and error variance.
D) When most of the variability in Y is associated with residual variation, then X predicts Y.