The impact of Darwin s evolutionary theory on the American thought and the influence of the nineteenth century French literature on the American men of letters gave to yet another school of Realism： American（）.

The impact of Darwin s evolutionary theory on the American thought and the influence of the nineteenth century French literature on the American men of letters gave to yet another school of Realism： American（）.
A、modernism
B、colloquialism
C、naturalism
D、humanism
正确答案：C