Madden Has Been Shy Ever Since He Was a Baby

Madden has been shy ever since he was a baby and has never had a large group of friends. When he reaches college, he promises himself he will be more social. Unfortunately, whenever he arrives at a party, he's intimidated by all the people and starts to worry that they'll reject him. As a result, they tend to ignore him, and he just feels even more shy. Madden's shyness is

A) having an evocative influence on the environment.
B) inevitable due to genetic determinism.
C) due to strategic pluralism.
D) all of these