Suppose you compute the correlation coefficient between two variables, X and Y, and obtain a value of 0.55. Then you realize that all the values for both variables have been corrupted in a way that their actual sign has been changed (positive values were turned into negative values and vice versa; only the signs have been changed). Then the actual, corrected value of the correlation coefficient ______.

A.is 0.50

B. remains unchanged

C.is −0.55

D. changes but there is not enough information to determine the correct value

E.is 0