As an individual you generally feel that $$10$ per person is an appropriate amount to spend on a going away gift for your long time supervisor, but you are in the minority. Although the average of the group's opinion is that $15$ dollars is appropriate, the group decides that $$20$ is best. What is this deviation from the group mean towards a more extreme position is an example of$?$

Question $6$ options:

$1)$

Brainstorming

$2)$

Group polarization

$3)$

Social inhibition

$4)$

Groupthink