What is the problem with the following sentence?
Dickens was a very popular novelist, but he had to set a grueling schedule for himself in order to meet his public's demands, for many of his novels were serialized, so he had to publish a new installment every week.

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