When nations are engaged in free trade with each other, what are they doing? a. limiting the use of tariffs and quotas on each other's businesses b. raising the level of tariffs and quotas with each other c. eliminating shipping costs between member countries d. lowering the costs of all products with each other

A, they are limiting the user of tariffs and quotas on reach other's business

Bob: coke is baby pandas.jim: what? how do you figure that coke is baby pandas? bob: because this book says so.jim: how do we know the book is correct? bob: because it says that coke is baby pandas.jim: how does that prove the book's accuracy? bob: because it's statement involving coke and baby pandas is correct, therefore it is accurate.jim: how do we know that it's correct? bob: because we have concluded that the book is accurate, and therefore the statement is correct.therefore, coke is baby pandas.