What's Dreiser' s naturalistic belief? Please discuss the questi

What's Dreiser' s naturalistic belief? Please discuss the question with Carrie, a character in Sister Carrie as an example.
【正确答案】：A.Dreiser believes that while men are controlled and conditioned by heredity, instinct and chance, a few extraordinary and unsophisticated human beings refuse to accept their fate wordlessly and instead strive, unsuccessfully, to find meaning and purpose for their existence.
B.Carrie, as one of such, senses that she is merely a cipher in an uncaring world vel seeks to grasp the mysteries of life and thereby satisfies her desires for social status and material comfort, but in spite of her success, she is lonely and dissatisfied.