C)
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The bill by President George W. Bush EGTRRA called for large tax cuts similar to Economic Recovery Act of 1981 by President Reagan.
The assumptions behind the theory used as a basis by President Reagan to lower the taxes of big companies was Laffer's theory. This states that when an industry is charged with more tax, it suppresses their capability to produce more products. Since more products mean more tax. If the tax collection is lowered, this will result in higher production and is good for the country's economy. Also, they thought that the previous tax collection is more than what the government needs.
Answer:
World War I changed the way wars were fought because of the widely known trench warfare. Because troops inside the trenches were much more protected than troops outside, it led to much more prolonged battles.
The answer is: Presidents