Answer:
A cost the U.S.consumer an extra $660 or so per Japanese import purchased
Explanation:
The U.S.-Japaneses agreement in 1981 to limit imports of small Japanese cars to the U.S. cost the U.S.consumer an extra $660 or so per Japanese import purchased. This due to increased trade import duty by the US government on the Japanese cars.
Thus , we can say that the option A is appropriate answer to the question rest all options are absurd with the context of the question.