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]: This man gives his name, along with that of Francis Sears, to a process in ultrasonic imaging for which the acoustic wavefronts act as optical gratings to diffract the light on either side of the central spot. The distance over which charge carriers in plasmas exclude electric fields via his namesake shielding is also known as his namesake length. With an assistant later famous in his own right for his rule for determining whether ring molecules would show aromatic properties, he developed a mathematical expression to explain characteristics of electrolytic solutions, the famous equation named for him and Erich Hckel. FTP name this man who also gives his name to the SI unit defined as about 3.3 x 10-30 Coulomb meters, which measures the molecular dipole moment.
[EX A]: Science

[EX Q]: nation was defeated at Koh Chang by the French. Khana Ratsadon led a bloodless revolution in this nation, one kingdom in which compiled the Dharmashastra. A kingdom in this nation succeeded the Kingdom of Hiran and was founded by Mangrai. This nation, once home to the kingdom of Lanna, was the site of a capital founded by General Taksin at Thonburi. The collapse of the Ayutthaya in this nation preceded the ascent of the Chakri dynasty of Rama I. It was invaded by Japan during World War II to access the Malay Peninsula. It was once dominated by the monarchs of Burma. For 10 points, name this nation, once known as Siam, whose capital is Bangkok.
[EX A]: History

[EX Q]: Just before the First Crusade, this country saw the sudden death of its ruler Ladislas I, who along with Coloman the Book-Lover was a member of this country's Arpad Dynasty. The Black Army of this country was led by its ruler Matthias Corvinus. A White Terror was inflicted on this country's population by its leader during World War II, Miklos Horthy, who led an army to depose his communist predecessor, Bela Kun. The Soviet Union crushed a 1956 independence movement in this country led by Imre Nagy. Following the Compromise of 1867 or Ausgleich, this country formed a dual monarchy with Austria. For 10 points, name this country with capital at Budapest.
[EX A]:
History