The correct answer is: C. as the value of one attribute decreases the value of the second attribute increases.
A correlation coefficient is a measure of the strength and direction of the linear relationship between two variables. A correlation coefficient of -0.85 indicates a strong negative linear relationship between the two variables. This means that as the value of one variable increases, the value of the other variable decreases.
Option A is incorrect because a correlation coefficient of -0.85 indicates a strong linear relationship, not no relationship.
Option B is incorrect because a correlation coefficient of -0.85 indicates a negative linear relationship, not a positive linear relationship.
Option D is incorrect because a correlation coefficient of -0.85 indicates a strong negative linear relationship, not a linear relationship.