Professor lee performed an experiment in which participants put on a barry manilow t-shirt before entering a room with other students. the participants' tendency to overestimate the extent to which the other students would notice their unusual t-shirt best illustrates

Best illustrates D) the spotlight effect. This phenomenon causes people to perceive that they are more notorious than they really are, thus having a non-objective perspective of their own notoriety. This is because the thought process makes one perceive the world "turning around", that is, we are the center of all social activities, forgetting the fact that all people have the same perception.

I hope my answer can help you.