Pls ignore the answer i put but whats the answer

How can you avoid the problem of groupthink? a. by choosing a group leader to direct the group b. by composing the team of only like-minded individuals c. by encouraging all members to voice their opinions d. by keeping quiet when you disagree with another group member's opinion

In writing, an idea map is a writing plan similar to: a)an outline. b)an illustration. c)a conclusion. d)a graphic.

Which of these sentences uses parallel structure