(3) capitalism -- Wealth of Nations is the correct answer.
(1) is incorrect because The Prince involved absolute power, not colonialism.
(2) is incorrect because the Sadler Report involved labor laws, not militarism.
(4) is incorrect because The Communist Manifesto involved Communism, not monotheism.
(3) is correct because Adam Smith's "The Wealth of Nations" practically served as the Bible of capitalism in the 18th and 19th centuries.
Answer: Department of Homeland Security
Explanation: After the September 11th attacks, former President George W. Bush created the Department of Homeland Security. This department was created to fight terror attacks.
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