Use the figure below to answer the following question(s). Average Cost CRAC . . . O A. Returns to scale are decreasing from 0 to Q, units of output. O B. Returns to scale are decreasing after Q, units of output. O C. Returns to scale are constant from Q, to Q, units of output. O D. Returns to scale are increasing from 0 to Q units of output. O. E. Returns to scale are constant from Q to Q, units ofoutput