Which of the following best describes the united states’ policy of containment following world war ii?
a.the united states would invade the ussr whenever that nation seemed likely to stage a communist takeover.
b.the united states would only provide diplomatic assistance to countries fighting a communist takeover.
c.the united states would only go to the united nations on behalf of nations resisting a communist takeover.
d.the united states would use economic and military measures to prevent the spread of communism.

The correct answer is letter D. 
The best statement describes the United States policy of containment following World War II is the United States would use economic and military measures to prevent the spread of Communism.
Containment known as a Cold War foreign policy of the United States and its allies to prevent the spread of communism, it was a United States policy using numerous strategies to prevent the spread of communism abroad.

The correct answer to this open question is the following.

Although there are no options attached, we can comment on the following.

The fossil discovered in the 1950s that reinforced the hypothesis that Africa was the birthplace of humanity was the "Australopithecus Africanus."

At the end of the 1940s, beginning of the 1950s, renowned archeologists  John T Robinson and Robert Broom excavated the Sterkfontein Caves in South Africa and discovered a 2.3 million-year-old fossil they called "Mrs. Ples," or the Australopithecus Africanus.

Anthropologists consider that South Africa is the cradle of humanity. They think that the first hominids appeared there and they spread to other regions of the earth. The oldest one of the hominids was the Australopithecus and it is considered to have appeared on earth approximately five million years ago. The latest form of hominids, the H*mo Sapiens -you and I- appeared approximately 200,000 years ago.