Answer:
The correct answer is: Group polarization.
Step-by-step explanation:
Group polarization is a phenomenon widely studied in Social Psychology and can be understood as the tendency of groups to engage in behavior, make decisions, or adopt attitudes that are more radical and more extreme than the initial attitudes and behavior of their initial individual members.
Usually after a discussion with his/her group, an individual attitude towards certain topic tend to get reinforced and made more radical.
In this particular case, after discussing the matter over coffee, they are even more convinced that obtaining a degree is easier today. This episode provides an example of: Group polarization.