Students asked by a psychologist to tell a lie before discussion groups vastly overestimated how many people in the discussion groups could tell they were lying. Other research has found that when volleyball players perform unusually poorly on the court, teammates notice this far less often than the players expect. Finally, in one research experiment a student wearing a funny T-shirt entered a room full of people. Questioning revealed that only a small fraction of the people in the room noticed the shirt, contrary to the student' s expectations. Which one of the following is best illustrated by the statements above? ['People tend to believe their appearance and behavior are noticed by others more often than is actually the case.', 'People tend not to notice the appearance or behavior of others.', 'We are actually less observant of the appearance and behavior of others than we think ourselves to be.', 'People tend to be far less aware of their own appearance and behavior than are other people.']