Need a little help with this

B.

Explanation:

The destruction and casualties of Pearl Harbor caused most people to want to joing the war. Before that, many American did not think it was a good idea.

It's B.

The United States stayed out of WW2 for most of the beginning, and mostly acted as a neutral country through the first few years. This however, changed when Japan bombed Pearl Harbor. The United States felt obligated to fight back, and officially got involved in the war the day after they were bombed by Japan.

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answer; /// i believe that the correct answer is (d)the huang he river valley;

donald carl johanson (born june 28, 1943) is an american paleoanthropologist. he is known for discovering – with yves coppens and maurice taieb – the fossil of a female hominin australopithecine known as "lucy" in the afar triangle region of hadar, ethiopia.

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i googled "who was kolson johanson" and this is the answer i found.

sorry if this is incorrect.