LSAT 1-1-23 难道不是他因驳斥？谢谢！

siebel

23. The function of government is to satisfy the genuine wants of the masses, and government cannot satisfy those wants unless it is informed about what those wants are. Freedom of speech ensures that such information will reach the ears of government officials. Therefore, freedom of speech is indispensable for a healthy state.
Which one of the following, if true, would NOT undermine the conclusion of the argument?
(A) People most often do not know what they genuinely want.
(B) Freedom of speech tends ultimately to undermine social order, and social order is a prerequisite for satisfying the wants of the masses.
(C) The proper function of government is not to satisfy wants, but to provide equality of opportunity.
(D) Freedom of speech is not sufficient for satisfying the wants of the masses: social order is necessary as well.
(E) Rulers already know what the people want.

原文说言论自由很重要；答案D说社会秩序也重要。给出他因，是否应该就是undermine原文？可答案为什么说是NOT undermine呢？谢谢！

joywzy

siebel,

) Freedom of speech is not sufficient for satisfying the wants of the masses: social order is necessary as well

言论自由不足以满足大众的需要，社会秩序也是必要的。

这不是undermine，只是提出了一个补充。

cranberry

同意楼上的，文中说FREEDOM OF SPEECH是不可少的，只是必要条件，所以补充另一个必要条件不会有UNDERMINE的效果

renprince

对，增加的一个是必要条件


驳斥成立的话应当是排除言论自由的存在