SAT English Practice Question

This passage provides examples of people who have had different responses to the same situation. In the beginning of the passage, the author describes people who are "eager to believe" and then later describes people who are "more skeptical" and "more cautious." What is the effect of this contrast?

1. A.show that the speaker is an unbiased observer of the situation.
2. B.highlight the importance of the speaker’s personal opinion.
3. C.suggest that there is no single correct way to understand the situation.
4. D.demonstrate the speaker’s expertise on the subject.