[求助]大全A-3

3. As part of our program to halt the influx of illegal immigrants, the administration is proposing the creation of a national identity card. The card would be available only to U.S. citizens and to registered aliens, and all persons would be required to produce the card before they could be given a job. Of course, such a system holds the potential, however slight, for the abuse of civil liberties. Therefore, all personal information gathered through this system would be held strictly confidential, to be released only by authorized personnel under appropriate circumstances. Those who are in compliance with U.S. laws would have nothing to fear from the identity card system.

In evaluating the above proposal, a person concerned about the misuse of confidential information would be most interested in having the author clarify the meaning of which of the following phrases?

(A) “all persons” (line 5)

(B) “however slight” (line 7)

(C) “civil liberties” (line 8)

(D) “appropriate circumstances” (line 11)（D）

(E) “U.S. laws” (line 2)

对这道题不是很理解，没有找到解释，大家能帮帮我么？

题目问一个担心confidential information被误用的人会最想进一步澄清什么信息。

Author说不用担心的理由是all personal information gathered through this system would be held strictly confidential, to be released only by authorized personnel under appropriate circumstances. 所以需要进一步解释的就是under什么样的circumstances信息会被透露出去。

其它几个选项都和misuse of confidential information没有关系。

谢了！