Which of the Following Statements Is True

Short Answer

Which of the following statements is true? $\begin{array}{|l|l|}\hline A&\text { The correlation coefficient is -1 if there is a perfect positive correlation between two variables.}\\\hline B&\text { The correlation coefficient is 0 if there is a perfect positive correl ation between two variables.}\\\hline C&\text { The correlation coefficient is 0.5 if there is a perfect positive correlation between two variables.}\\\hline D&\text { The correlation coefficient is 1 if there is a perfect positive correlation between two variables.}\\\hline \end{array}$