【单选题】温馨提示:此份作业(即以下两个选择题)不要求所有同学都完成。 Refer to Scenario 9-3. If Island prohibits international trade in cardboard, then the equilibrium price of a ton of cardboard is
A.
$36 and the equilibrium quantity of cardboard is 74 tons.
B.
$44 and the equilibrium quantity of cardboard is 88 tons.
C.
$52 and the equilibrium quantity of cardboard is 96 tons.
D.
$60 and the equilibrium quantity of cardboard is 100 tons.