Q40:

Political advocacy groups have begun to use information services to disseminate information that is then accessed by the public via personal computer.  Since many groups are thus able to bypass traditional news sources, whose reporting is selective, and to present their political views directly to the public, information services present a more balanced picture of the complexities of political issues than any traditional news source presents.

Which of the following is an assumption on which the argument above depends?

1. Information services are accessible to enough people to ensure that political advocacy groups can use these services to reach as large a percentage of the public as they could through traditional news sources.

2. People could get a thorough understanding of a particular political issue by sorting through information provided by several traditional news sources, each with differing editorial biases.

3. Information on political issues disseminated through information services does not come almost entirely from advocacy groups that share a single bias.

4. Traditional news sources seldom report the views of political advocacy groups accurately.

5. Most people who get information on political issues from newspapers and other traditional news sources can readily identify the editorial biases of those sources.

TTGWD里的答案是C，但个人觉得有争议，因为文章说明了Since many groups are thus able to bypass traditional news sources, whose reporting is selective, 所以我认为是A，不知XDJM们有什么高见？

C)Information on political issues disseminated through information services does not come (almost entirely) from advocacy groups that share a single bias.

without the green words, C should be a perfect answer.