Answer:
C. group polarization.
Step-by-step explanation:
Group polarization refers to the inclination of a group of people to think in a more exaggerated way than each individuals' original thoughts. As a consequence, Nora, Ko, Ian and May initially believed that Ms. Akey was a little better teacher than mr. Schwenke. However, after talking together, they jumped to the more extreme conclusion that Akey is much better.