I wrote to my non-Japanese friends in Berkeley shamelessly axing them to send us food and they obligated went large cartoons cartons of cartons nuts dried fruit and jam?

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