Suppose the production function for coffee (C) is C = min(B,W) where B = beans in pounds and W = water in gallons and the price of water is $.10 per gallon and the price of beans is $10 per pound. the cost minimizing combination of beans and water for C = 200 is
a. B = 200, W = 2000
b. B = 2000, W = 200
c. B = 100, W = 100
d. B = 200, W = 200