【单选题】Oil refiners can vary the mix of gasoline versus diesel fuel derived from a barrel of oil. If the price of diesel fuel increases relative to the price of gasoline:
A.
supply of gasoline will shift to the right.
B.
supply of gasoline will shift to the left.
C.
supply of both diesel fuel and gasoline will shift, but in opposite directions.
【单选题】George runs a cookie factory. His cookies are made with sugar, peanut oil, and soybean oil. The number of boxes of cookies that he produces is f (su, po, so) = min { su; po + 2so } where su is the num...