From the first novel Sister Carrie on， Dreiser set himself to project the American values for what he had found them to be，（）to the core.

From the first novel Sister Carrie on， Dreiser set himself to project the American values for what he had found them to be，（）to the core.
A、materialistic
B、individualistic
C、idealistic
D、illusionary
正确答案：A