• of producing 1 ton of wheat is 0.5 bottles of wine, because 60 bottles of wine / 120 tons of wheat.

• Country B's opportunity cost of producing 1 bottle of wine is 2 tons of wheat, because 120 tons of wheat / 60 bottles of wine.
• of producing 1 ton of wheat is 0.5 bottles of wine, because 60 bottles of wine / 120 tons of wheat.

• Country B's opportunity cost of producing 1 bottle of wine is 2 tons of wheat, because 120 tons of wheat / 60 bottles of wine.
• of producing 1 ton of wheat is 0.5 bottles of wine, because 60 bottles of wine / 120 tons of wheat.

• Country B's opportunity cost of producing 1 bottle of wine is 2 tons of wheat, because 120 tons of wheat / 60 bottles of wine.

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