Answer:
A. modern communication and technology.
Step-by-step explanation:
This is the answer that best explains why the United States is a major part of the global community. Trade unions are not particularly relevant internationally, nor are they only a feature of the United States. Moreover, foreign goods would not make a difference in the international arena. Finally, the United States is not a good example of a country with cheap labor. However, it is a leader in modern communication and technology.