Question

Which is an important issue the United States faces in the twenty-first century? A. terrorism B. global warming C. globalization D. all of the above

Answer 1

D. All of the above because theres no way it can be just one of them they all happened

Step-by-step explanation:

Answer 2

D all of the above
although Global Warming will take millions of years to affect the globe permanently and globalization is also not a problem because all 7+ billion people in the world could fit in the US city of Los Angeles.