Which of the Following Statements Is Correct When All the Actual

Which of the following statements is correct when all the actual values of y are on an upward sloping regression line? $\begin{array}{|l|l|}\hline A&\text {The coefficient of correlation is equal to one and the sign of the coefficient of correlation }\\&\text { will be negative but the sign of the slope with be positive.}\\\hline B&\text {The coefficient of correlation and the slope must both be equal to 1 . }\\\hline C&\text {The coefficient of correlation is equal to one and the sign of the coefficient of correlation }\\&\text { and the sign of the slope will both be positive.}\\\hline D&\text {The coefficient of correlation and the slope must be equal to -1 . }\\\hline \end{array}$