Which of the Following Best Illustrates the Elimination of Transaction

Which of the following best illustrates the elimination of transaction costs that result from the adoption of the euro as the single European currency?

A) When a German company imports French wine it no longer needs to use a bank in completing the transaction.
B) When a German company makes purchasing plans that involve importing French wine it knows exactly what the cost will be in terms of its own currency.
C) When a German company imports French wine it no longer has to pay a tariff on the wine.
D) When a German company imports French wine it no longer has to pay a charge for converting German currency into French currency.