Highly specific markets can often be exceptionally profitable

Which of the following scenarios is most inclusive?

a. A professor speaking to high school students about marriage and children. b. A priest speaking to a group of Muslims about the Bible. c. A group of construction workers meeting to discuss optimal tools. d. A teacher speaking to underprivileged children about vacationing in Europe.

A group __________ is a member who has an opinion or belief that is different from the rest of the group.

Fill in the blank(s) with the appropriate word(s).