What classical Greek architectural style features fluted columns with capitals that have volutes?

The architectural style characterized by fluted columns with capitals that feature volutes is the Ionic order. This style originates from ancient Greece and is known for its elegant and slender proportions. The volutes, which are the scroll-like features of the capital, give the Ionic columns a distinct and graceful appearance. In addition to the fluted shafts, Ionic columns are usually taller and more slender than their Doric counterparts, which helps to further emphasize the elegance of the design.

The other architectural styles mentioned in the choices have distinct characteristics that differentiate them from the Ionic order. The Doric order, for example, has a more robust and sturdy appearance, featuring plain capitals with no elaborate decoration. The Corinthian order is similar to the Ionic in being slender and having fluted shafts, but its capitals are decorated with acanthus leaves rather than volutes. The Neoclassical order draws inspiration from classical styles but does not represent a specific ancient Greek style, instead embodying a revival of various classical elements, including the Ionic form.