In the United States, One Worker Can Produce 10 Tons

Multiple Choice

In the United States, one worker can produce 10 tons of steel per day or 20 tons of chemicals per day. In the United Kingdom, one worker can produce 5 tons of steel per day or 15 tons of chemicals per day. International trade will occur between the United States and the United Kingdom so long as 1 ton of steel trades for:

A) at least 1 ton of chemicals, but no more than 2 tons of chemicals.
B) at least 2 tons of chemicals, but no more than 3 tons of chemicals.
C) at least 0.33 ton of chemicals, but no more than 0.5 ton of chemicals.
D) at least 0.55 ton of chemicals but no more than 0.75 ton of chemicals.