All of the Following Have Been Found to Be Associated

All of the following have been found to be associated with high reactive children except

A) about 2% of children are high reactive.
B) they show vigorous motor activity and distress in response to unfamiliar stimuli when they are 4 months old.
C) in their second year, they tend to become shy, timid, and fearful in response to unfamiliar events.
D) in their second year, about one-third of them will become inhibited.