Since there are so many ways to produce the same level of output when production requires inputs that are imperfect substitutes, it really doesn't matter which way it is done. True or False When an iso-cost line intersects an iso-quant line twice we know: " ' A. this iso-cost is twice the least-cost iso-cost for this output level. B. this isocost is the minimum possible cost to produce this output level. ' C. It must be possible to nd an input combination between the two intersecting ones on this iso-cost line that that costs less. " D. nothing much about input costs