What do the y-coordinates on the least-squares regression line represent? Choose the correct answer below. O A. The y-coordinates represent the minimum expected value of the response variable for any given value of the explanatory variable. O B. The y-coordinates represent the values of the explanatory variable. O C. The y-coordinates represent the mean value of the response variable for any given value of the explanatory variable. O D.The y-coordinates represent the maximum expected value of the response variable for any given value of the explanatory variable.