"C. He designed practical, useful inventions" and "D. <span>He served as spokesman for the American colonies" are both correct concerning Franklin, since he was beloved in France as a representative of the US and took on many famous experiments. </span>
WWI was the first TOTAL war in world history.
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8) Chinese crawfish since it is cheaper.
9) The opportunity cost is Louisiana crawfish because it would struggle due to it's expensive price. The trade off would be the Chinese crawfish.
10) Price is not the only factor. Some customers may like Louisiana crawfish, and others may like Chinese.
11) The demand of the Louisiana crawfish would decrease while the chinese increased
