[讨论]manhattanGMAT一道BF题，求助！

为什么不选A呢？第一句话之后有一个but，不是表明作者观点与第一句是相反的吗？

The president’s nominees to federal circuit courts have been judged conservative for their stands on hot-button issues. But a review of their financial disclosure forms and Senate questionnaires reveals that the nominees are more notable for their close ties to corporate and economic interests, especially the energy and mining industries. Some of them were paid lobbyists for those same interests. Further, the nominees with industry ties were overwhelmingly appointed to circuit courts regarded as traditional battlegrounds over litigation affecting these industries. Independent observers who follow the federal bench believe that the extensive corporate involvement among so many of the nominees is unprecedented.

In the argument above, the two portions in boldface pay which of the following roles?

		The first is a generalization that the author aims to attack; the second is that attack.
		The first is a pattern that the author acknowledges as true; the second is the author’s conclusion based on that acknowledgment.
		The first is a phenomenon that the author accepts as true; the second is evidence in support of the author’s conclusion.
		The first is the author’s position based on the evidence cited; the second is a pattern presented in support of that position.
		The first is an exception to a rule introduced in the argument; the second provides the reasoning behind the exception.

对的，但是我不太理解，可否解释一下？谢谢！

我也没仔细看内容 就大概看了一下结构

第一句说是描述一个现象 but开始到第二句黑体结束 都是说这种现象的不合理性(也就是论据) 最后一句话是结论 

所以C 选项是符合的

那么A为什么不对呢？既然论据是反对第一句话，为什么不能理解为第一句话的现象是作者要attack的呢？