How R you doing today during this amazing day with the sun out

Which of the following best describes the relationship between the united states and south korea today?

Nations that have factories to produce goods are called?

One drawback of voluntary trade is that it a. requires two groups to use a common language b. can make one group dependent upon another for necessary goods c. doesn't occur unless there is a shortage of goods for at least one group d. forces groups to rely on themselves to produce all the goods they need