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.

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.
Social Science

Japan's Chikyu Hakken is trying to reach this region, and n-waves travel along its upper boundary. Post-perovskite forms in the bottommost part of this region, the D double prime layer. P-waves slow down and S-waves disappear past the bottom of this region, and its top features a P-wave velocity jump from approximately seven to approximately eight kilometers per second. The low velocity zone of the asthenosphere is found in the upper part of this region. It is sandwiched between the Gutenburg discontinuity and the Moho, and this layer's namesake plumes form hotspots. For 10 points, name this layer of the earth between the crust and the core.
Science

Troops from this city lost the Battle of Montaperti because of the treachery of Bocca degli Abati. This city expanded during the Primo Popolo, and in 1378, it saw a revolt of lower-class woolworkers known as the Ciompi. This city briefly became a republic after the disastrous rule of Pietro the Unlucky, and in 1497, the Bonfire of the Vanities occurred in this city under Savonarola. For 10 points, name this capital of Tuscany, an Italian city once ruled by Cosimo and Lorenzo de Medici.

History