A task force is

The primacy effect means that:

A. The message that is presented last is the most effective. B. When a speaker presents a persuasive message, it is most likely to be accepted when the audience has prior knowledge of the subject. C. The message that is presented first is the most effective. D. Persuasive messages are rarely taken seriously.

Which symptom of groupthink is expressed when a group member says, "Of course, we're right. We have a perfect safety record, have done this many times, and nothing's gone wrong"?

a) Morality b) Stereotyping outsiders c) Mindguarding d) Illusion of unanimity e) Illusions of invulnerability