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.

[EX Q]: Cardinal Thomas Gibbons' defense of this organization would lead to Pope Leo XIII issuing an encylical, Rerum Novarum, supporting organizations of their kind. In contrast with its inclusive reputation, a chapter of this group was involved in the Seattle riots of 1886. Internal feuding following the failed Missouri Pacific railroad strike of 1886, and the emergence of a rival organization of skilled craftsmen, meant that by 1900, this organization was almost nonexistent. Name this labor organization that helped lobby for the Chinese Exclusion Act and, for 10 points, was founded by nine tailors in Philadelphia in 1869 and reached its peak under Terence V. Powderly.
[EX A]: History

[EX Q]: is an art zone in this country, which is home to an artist who filled the Tate Modern with millions of ceramic sunflower seeds. A really long panoramic painting from here follows a river upstream from a rural to urban setting and depicts daily life during a spring festival. Birds and flowers name a genre of landscape painting from this country, where an assembly line using eight basic face molds was used to create thousands of life-size ceramic sculptures. That sculptural collection is still only partially excavated. For 10 points, name this country home to Ai Weiwei and the Terracotta Army.
[EX A]: Fine Arts

[EX Q]: Iannis Xenakis used eight so-called "sound complexes" in a solo work for this instrument called Nomos Alpha. Six beats on the body of these instruments begin the main theme in Arvo Part's orchestration of Fratres for twelve of them. An ensemble consisting entirely of these instruments was founded in the 1970s by twelve members of the Berlin Philharmonic. The first of Villa-Lobos's Bachianas Brasileiras was composed for (*) eight of these instruments, while Jacqueline du Pre popularized Edward Elgar's concerto for it. J.S. Bach's six unaccompanied suites for this instrument were famously recorded by both Mstislav Rostropovich and Pablo Casals. For 10 points, name this instrument played by Yo-Yo Ma which joins two violins and a viola in a string quartet.
[EX A]:
Fine Arts