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]: A woman in a white dress is shown falling before a Madonna in this painter's Il Penseroso, and horseback riders approach a Gothic cathedral in his The Return. Another of his works portrays a palace made of clouds as an angel bids farewell, and this man depicted a thunderstorm transitioning to a calm river as seen from Mount Holyoke. In another series, hunters pursue deer across a rugged landscape in the 'Savage' section, while a colossal statue is shown beheaded in the 'Destruction' section. Depicted by Asher Durand alongside William Cullen Bryant in Kindred Spirits, FTP, name this American romantic painter of The Voyage of Life and The Course of Empire, the founder of the Hudson River School.
[EX A]: Fine Arts

[EX Q]: Gerrid Rietveld and J. J. P. Oud were the best known architects of this movement. One of the founders said, "The square is to us as the cross was to the early Christians. "  In 1917 a namesake journal was published to explain the group's art, which was centered in Amsterdam. Although Theo Van Doesburg began using green and diagonal lines in 1925, the original focus was on horizontal and vertical lines and primary colors. FTP, name the movement that included Piet Mondrian.
[EX A]:
Fine Arts