The Olmec people created art as a way to give power to the spirits and their spirit ruler. Art was considered sacred work that gained power as more time and energy was spent making it. Clay and stone were often Olmec artists' materials of choice. The changes the artists made to the clay and stone were symbolic of the metamorphosis of the spirit into a different being. For example, when clay was formed into ceramics it became meaningful. After the ceramic vessels were baked, the Olmec believed the ceramics had the power and life to enable the tribe's spiritual leaders to change into other spirits. According to the excerpt, which of these does clay and stone represent in Olmec art?
A.
fire
B.
spirits
C.
ceramics
D.
change