If the independent variable is production volume and the dependent variable is total manufacturing cost, an R square of 0.90 indicates A. 90 percent of the change in volume is caused by changes in manufacturing cost. B. 10 percent of the change in volume is caused by changes in manufacturing cost. C. costs will change by 90 percent of the change in volume. D. 90 percent of the change in manufacturing cost can be explained by the change in the production volume