Which of the following trading partners of the U.S. became its topmost "trade problem" at the beginning of the 21st century? International Marketing Chapter 2 Which of the following trading partners of the U.S. became its topmost "trade problem" at the beginning of the 21st century?A. United KingdomB. JapanC. GermanyD. CanadaE. ChinaAnswer: E. China Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+