<span>D. an unofficial competition between different departments of NASA to develop new space technology
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In an explanatory essay, or any essay, the introductory paragraph introduces (hence it's name) the main idea, or what you are going to explain. The body paragraphs go into extreme detail of what the introductory paragraphs mentioned.
Answer:
generate revenues to repay war debts, and solve trade disputes between states
Answer (A)-They helped the war effort in many different ways.
Explanation:
B. i think... yea it should be.