QUESTION 12 True or False? In the chapter on communication in social systems we suggested that highly cohesive groups sometimes make faulty decisions when deciding a course of action because they become locked into a particular perspective or plan and disregard alternate courses of action in the interests of maintaining unanimity of opinion above everything else. This phenomenon is known as groupthink. O True O False QUESTION 13 Upon arriving at the movie theater on a recent date, Amy and Katie realized that neither of them had any particular movie in mind they wanted to see. While trying to make a decision about which movie they should buy tickets to, they looked over the movie posters on the wall and ultimately opted to see the movie featured on a poster proclaiming it to be the most popular movie of the summer' Amy and Katie's choice of movie based on the marketing featured on the poster is an example of which of Cialdini's weapons of influence, centering on the principle that when we face uncertainty, we often look to see what others are doing? O A. Scarcity OB. Social proof O C. Reciprocity O D.Liking