Which One of the Following Statements Most Accurately Describes Disabilities

Which one of the following statements most accurately describes disabilities that result from dysfunctions in the brain (e.g., mental illness) ?

A) They are typically the result of abnormalities in the left (rather than right) hemisphere.
B) They are typically the result of abnormalities in the right (rather than left) hemisphere.
C) Recent technological advances have enabled specialists to detect most of them within the first six months of life.
D) In some instances, they become evident only in adolescence or early adulthood, perhaps as a result of changing hormone levels.