In Simple Regression Analysis,if the Correlation Coefficient Is a Positive

In simple regression analysis,if the correlation coefficient is a positive value,then:

A) The Y intercept must also be a positive value.
B) The coefficient of determination can be either positive or negative,depending on the value of the slope.
C) The least squares regression equation could either have a positive or a negative slope.
D) The slope of the regression line must also be positive.
E) The standard error of estimate can have either a positive or a negative value.