Two-Year-Old Duncan, a Participant in a Study of Self-Evaluation, Is

Multiple Choice

Two-year-old Duncan, a participant in a study of self-evaluation, is trying to complete a difficult puzzle, but he doesn't realize that he is trying to make a piece from a different puzzle fit into the one in front of him. After trying unsuccessfully for a while, Duncan is most likely to

A) keep working on the puzzle, showing no emotion
B) lose interest and stop trying to finish the puzzle
C) make eye contact with the nearby experimenter
D) show "open" body postures