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[ ] Consider a consumer of two goods, X and Y. If the price-consumption curve is positively sloped, then it must be that: A. X and Y are normal goods. B. X and Y are substitutes in consumption. X and Y are complements in consumption. None of the above [12] Imagine a firm encounters the isoquants illustrated below at the output levels of 10, 15, and 20 (i.e., all isoquants are right-angles) If the price of capital equals $100 and the price of labor equals $200, then the total outlay (i.e., total cost) to produce 15 units of output as cheaply as possible equals: A $6000 Q 20 B $900 $800 0 = 15 D $600 Q=10