Four psychology students working on a group project together are trying to figure out how they should avoid groupthink when making decisions about their project. Which of these ideas would be the...

Four psychology students working on a group project together are trying to figure out how they should avoid groupthink when making decisions about their project. Which of these ideas would be the least helpful?

a. Bonding by going to see a movie together before starting the project

b. Assigning each group member to be responsible for a different chapter in their textbook so that they cover all the details

 c. Having a student who is not in their group review the project

d. Designating a leader to oversee the project, one who is nondirective and encourages people to give honest feedback