´The Ionic column is typically identified by its capital, which includes large paired spiral scrolls, or volutes.<span> It has the tallest base of the three classic Greek orders. Columns in this style can be found throughout Capitol Hill, including the U.S. Capitol, the Supreme Court Building and the exterior of the Longworth House Office Building.´´ This s from: https://www.aoc.gov/capitol-hill/architecture-columns/ionic-columns
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Trompe L'oeil art is visual illusion in art. It's made to give the illusion that something is three dimensional. An example would be "Escaping Criticism" by Pere Borrell del Caso.
Answer:
B. Its exterior design incorporates features of Greek architecture.