PRICE Short-run Long-run Average Short-run Total Cost -Average Total Cost Q QUANTITY 23. If the firm produces Q, units of output with two inputs, the firm will be experiencing which of the following in the short run and in the long run? Short Run Long Run (A) Increasing marginal returns Economies of scale (B) Increasing marginal returns Diseconomies of scale (C) Diminishing marginal returns Economies of scale (D) Diminishing marginal returns Diseconomies of scale (E) Constant marginal returns Diseconomies of scale