Mark,a 47-Year-Old Man,is Very Shy

Mark,a 47-year-old man,is very shy.He has difficulty interacting with others because he feels awkward and does not easily express his thoughts and feelings.He is a relatively successful artist who lives alone in a rural Southern state.Mark also remembers being very shy as a child.Which of the following is NOT a likely explanation for the continuity of Mark's personality over his life span?

A) Mark's early temperamental shyness was influenced by his genes.
B) Mark's parents did not try to make him more outgoing.
C) Mark selected a job which reinforced his temperamental characteristics.
D) Mark's early temperament and his later personality traits are moderately correlated.