One of the most familiar themes in American naturalism is the th

One of the most familiar themes in American naturalism is the theme of human（ ）.
A、peacefulness
B、joyfulness
C、bestiality
D、civilization
【正确答案】：C
【题目解析】：美国自然主义文学表现得最常见的主题是人的“兽性”，并把它用来解释性欲。