How Is Foreign Trade in Inputs Similar to Trade in Outputs

Multiple Choice

How is foreign trade in inputs similar to trade in outputs?

A) U.S.producers buy (outsource) cheap foreign inputs (labor) while U.S.consumers buy cheap foreign outputs (U.S.imports) .
B) U.S.consumers sell (outsource) cheap foreign inputs (labor) while U.S.producers sell cheap foreign outputs (U.S.imports) .
C) U.S.producers sell (outsource) cheap foreign inputs (labor) while U.S.consumers buy cheap foreign outputs (U.S.imports) .
D) All of the choices are correct.