Refer to Scenario $9-1.$ Suppose the world price of cardboard is $$45$ and international trade is allowed. Then Boxland$$s consumers demand

a$.96$ tons of cardboard and Boxland$$s producers supply $75$ tons of cardboard.

b$.96$ tons of cardboard and Boxland$$s producers supply $96$ tons of cardboard.

c$.110$ tons of cardboard and Boxland$$s producers supply $75$ tons of cardboard.

d$.110$ tons of cardboard and Boxland$$s producers supply $96$ tons of cardboard.