Until Sara entered preschool and was moved to foster care, she lived in a household of neglect and physical abuse. When she finished first grade, she was still behind in reading, demonstrated excessive anxiety and inattention, and had a lower score than her classmates on IQ tests. What would be the most likely cause of her behavior and performance?
A.
She is taking out her anger on the teacher.
B.
Her exposure to violence made her not want to try.
C.
Her experience up until about age 3 would not affect her current academics.
D.
Her brain and cognitive development may have been affected by the early trauma.