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.

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.
Fine Arts

The beneficial type of this concept would be produced by such factors as the development of an AIDS vaccine, a better educational system, or a more efficient highway system. Costs of this type are not factored into the GDP; therefore, the GDP overstates economic welfare. FTP, name this economic concept in which a third party is affected by production or consumption of a commodity.
Social Science

A building at the University of Sheffield was designed as a half-scale version of it, and one of its corridors contains backdrops for The Three-Cornered Hat, painted by Picasso. The Lever House sits right across the street from it, and this structure is also notable for its tinted windows, whose blinds have only three settings. The entrance to it contains Alexander Calders Ordinary, and Mark Rothko provided paintings for the Four Seasons restaurant located here. Located at 375 Park Avenue and standing at 38 stories, FTP, name this New York City International Style Skyscraper by Phillip Johnson and Mies Van Der Rohe and commissioned by Phillys Lambert.

Fine Arts

