In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.

[Q]: The Keo Nua Pass in this country is one of the few passes through the Annamese Cordillera (CORE-dee-YARE-uh). This nation's capital includes the Temple of the Trung Sisters and is located on the Red River. The imperial citadel of Dai Noi is found in this country's onetime capital Hue (hway). For 10 points, name this Southeast Asian nation that was reunified in 1975 after a bloody war between the communist north and U.S.-aligned south.
[A]: Social Science

[Q]: This thinker argued hypotheses should not be subject to normative judgments, but rather should be evaluated on their "simplicity" and "fruitfulness" in his essay "The Methodology of Positive Economics." He stated money supply should annually increase by a set percentage in his namesake "k-percentage rule." One of his works claims that the practice of licensing doctors results in worse care and criticizes the Bretton Woods system arguing a floating exchange rate would be more effective. He wrote Free to Choose with his wife Rose and worked with Edmund Phelps to outline the "natural rate of unemployment" as a critique of the Phillips Curve. This economist called for a negative income tax to promote free markets in his book Capitalism and Freedom. For 10 points, name this leader of the Chicago School of economics who championed monetarism.
[A]: Social Science

[Q]: This thinker observed that "every action can only take place in consequence of a sufficient motive" in The Basis of Morality, and also wrote an essay arguing that the title group of people can't take a "purely objective interest in anything", titled "On Women". This philosopher applied "observations of unbiased physical investigators" to the "kernel of [his] Metaphysics" in On the Will in Nature, and described four classes of objects in On the (*) Fourfold Root of the Principle of Sufficient Reason. The "Epistemology" volume of his best known work discusses the Kantian "thing-in- itself". For ten points, name this pessimistic German author of The World as Will and Representation.
[A]:
Social Science