For case II, let the international price be 1 bottle = 1 bushel. Derive South Dakota's "trading possibilities curve." A 3 4 South Dakota B C 3 4 3 4 D 1 2 Wheat (bushels) Beer (bottles) O Option A Option B o Option C Option D For case II, let the international price be 1 bottle = 1 bushel. Derive South Dakota's "trading possibilities curve." A 3 4 South Dakota B C 3 4 3 4 D 1 2 Wheat (bushels) Beer (bottles) O Option A Option B o Option C Option D