A group often has an IQ (or intelligence level) that is higher than the IQ of any individual in the group.

In which zone do most conversations with family and friends occur?

A. intimate B. personal C. social D. public

Before giving a speech to his class, Jaehyun searched his school's website for statistics about the school's students-such as their average SAT and ACT scores, their racial and ethnic background, their gender, and their most popular majors-to begin to get a sense of the audience he would be addressing. In doing so, Jaehyun was engaging in

A. attitude appraisal. B. online survey. C. active observation. D. demographic analysis.