The Nation of Isolani Forbids International Trade

Multiple Choice

The nation of Isolani forbids international trade.In Isolani,you can exchange 1 car for 5 motorcycles.In other countries,you can exchange 1 car for 4 motorcycles.These facts indicate that

A) other countries have an absolute advantage,relative to Isolani,in producing cars.
B) Isolani has a comparative advantage,relative to other countries,in producing cars.
C) if Isolani were to allow trade,it would import motorcycles.
D) the world price of motorcycles exceeds the price of motorcycles in Isolani.