The answer is B because they were surprised by Americans and south Vietnamese
Answer:
The 1st pyramid is Old
The 2nd pyramid is Young
The 3rd pyramid is Stable
Explanation:
The amount of young people and old people in pyramid 3 are about equal (it doesn't have to be exactly equal)
There are far more young people than old people in pyramid 2, making in young.
There are more old and middle-aged people in the first pyramid, making it old.
The best prediction of investment of billions of dollars in African businesses by the Chinese will be that the United States will also take a stronger interest in Africa.
<h3>What will make U.S. have
stronger interest?</h3>
The United States will develop a stronger interest in Africa potential in order to compete with China as the world power.
Therefore, the Option D is correct.
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I think it's commerce, but it could be agriculture.