TOEFL Listening: TPO-TOEFL听力TPO - SY4IM00SK5951E07R$

What is one way the professor mention that can help with art restoration? A. By recreating the pigments and binding agents used by artists of earlier eras B. By removing pigments and binding agents that dissolve paintings over time C. By creating protective coatings of paint that do not damage original paintings D. By developing ways to safely remove paint added by previous restorers