how do i tell is mc is falling or rising

13. You are told that a firm is producing where AC AVC P= MR = MCAFC 0. We can tell from this information that if the output of this firm increases by a little bit: A) average cost is falling, average variable cost is falling, average fixed cost is falling, and marginal cost is falling B) average cost is falling, average variable cost is rising, average fixed cost is falling, and marginal cost is falling C) average cost is falling, average variable cost is falling, average fixed cost is rising, and marginal cost is falling Management, 1265 Military Trail, Toronto, ON, MIC 1A4, Canada www.utsc.utoronto.ca/mgmt Page 10 of 18 D) average cost is rising, average variable cost is rising, average fixed cost is falling, and marginal cost is falling E) average cost is rising, average variable cost is rising, average fixed cost is rising, and marginal cost is rising F) average cost is falling, average variable cost is falling, average fixed cost is falling, and marginal cost is rising G) average cost is rising, average variable cost is rising, average fixed cost is falling, and marginal cost is rising H) average cost is falling, average variable cost is rising, average fixed cost is falling, and marginal cost is rising I) none of the above