The correct answer is "openness".
Openness is one of the 5 aspects of personality. It groups individuals who are considered imaginative and creative. They are also intellectually curious and tend to be more aware of their feelings.
In this example, Michael is open-minded and always tries to answer a question in unusual ways, constantly testing his capacity. This shows his high level of intellect.
Another aspect of openness is liberalism. This facet relates to a person's readiness to challenge authority and question conventional procedures or traditional values. This explains his behavior at trying to be the "class clown" in numerous situations.