单选题 When a group of children who have been watching television programs that include acts of violence is sent to play with a group of children who have been watching programs that do not include acts of violence, the children who have been watching violent programs commit a much greater number of violent acts in their play than do the children who have been watching nonviolent programs. Therefore, children at play can be prevented from committing violent acts by not being allowed to watch violence on television.
The argument in the passage assumes which one of the following?

A、 Television has a harmful effect on society.
B、 Parents are responsible for the acts of their children.
C、 Violent actions and passive observation of violent actions are not related.
D、 There are no other differences between the two groups of children that might account for the difference in violent behavior.
E、 (E) Children who are treated violently will respond with violence.

【正确答案】 D

【答案解析】[解析] (D)通过排除他因的方法证实了孩子们诉诸暴力行动的次数仅与他们观看的电视节目有关的论断，从而进一步支持了不让孩子们观看暴力节目能防止他们在玩耍时表现出暴力行为的结论，因此(D)是文中的论证所依赖的假设；(C)选项对本题的结论构成了反对；(A)、(B)和(E)选项都不能从短文中合理地推出。