TOEFL Listening: TPO-TOEFL听力TPO - WRP57112PY3X34A8R$

What is the main purpose of the lecture? A. To explain why a particular statue of a Roman emperor is so famous B. To discuss how classical Greek and Roman statues looked in ancient times C. To describe the types of pigments Greek and Roman artists applied to statues D. To explain a shift from monochrome to polychrome statues in ancient times