The IONIC architectural style can be described as:
A. An elaborately detailed order with acanthus leaves in the capitals
B. The earliest established order, with simple design elements
C. The architectural order used most in the Hellenistic Age, with continuous friezes and volutes

Option C, The architectural order used most in the Hellenistic Age, with continuous friezes and volutes, is the right answer.

Explanation:

The Ionic order is one of the three forms of classical architecture. The Doric and the Corinthian are the two other forms. The use of Volutes can best characterize this form of architecture. This Ionic Order emerged in Ionia during the mid-6th century BC.This form of architecture was more popular during the Archaic Period in Ionia.