Which of the following statements accurately describes the paintings of the Gupta period?
AThey were true frescoes painted on wet plaster.
BThey primarily depicted Hindu mythology and were found only in South India.
CThe murals at Ajanta and Bagh, part of the Madhyadesa School, were painted on dry plaster and depict Buddhist themes.
DThe Gupta paintings are mostly lost, with no surviving examples of Buddhist art.