The literary school of naturalism was quite popular in the late 19th century. What are the major characteristics of naturalism?

The literary school of naturalism was quite popular in the late 19th century. What are the major characteristics of naturalism?

A. Strongly influenced by social Darwinism, naturalism emphasizes the determining power of the crushing forces of environment and heredity.
B.Being devoid of the freedom of choice and incapable of shaping their own destinies, men and women are helpless and insignificant in a cold and indifferent world.
C.The naturalistic writers reported truthfully and objectively, with a passion for scientific accuracy and overwhelming accumulation of factual detail. (p475)