B is the correct answer to your question
Yes, it is true that North Korea has been actively developing and testing nuclear arms for the last decade, since most of their facilities and tests are easily traceable.
The correct answer is the Democratic Party.
The Democrats began to lose the Senate when the Southern Democrats switched over as a result of Civil Rights legislation and become Republicans.
The Mali economy is less diverse than the United States economy because while the U.S. economy has 13+ exports, Mali only has three. Mali and North America share the natural resource of gold.