Nathan Is Seventeen Years Old and a Senior at Valley

Nathan is seventeen years old and a senior at Valley View High School. Nathan is exceptionally bright and excels in his academic endeavors. He is well liked by his teachers and has a small circle of close friends. Nathan views himself as being inferior to his peers because of his small stature and his lack of athletic abilities. However this view is not shared by his friends. The labeling process that best describes Nathan's view is

A) formal labeling.
B) peer-imposed labeling.
C) self-imposed labeling.
D) culturally-imposed labeling.