Of the Following, Which Is True of Pearson's Correlation Coefficient

Multiple Choice

Of the following, which is true of Pearson's correlation coefficient, r? ​

A) The value of r does not depend on the units of y and x.
B) r = 0 indicates a perfect correlation between x and y.
C) r cannot be less than 0 or greater than 1.
D) The value of r depends on which of two variables is labeled x.
E) is greater than 1.0 unless the points on a scatterplot line up exactly.