Which of the Following Statements Is True of Intellectual Disabilities

Which of the following statements is true of intellectual disabilities?

A) Intellectual disabilities involve a condition manifested after the age of 21.
B) Intellectual disabilities are also referred to as mental retardation.
C) Symptoms of intellectual disabilities include lack of balance, weakness, and uncontrolled or restricted movements, depending on where in the brain the damage occurred.
D) Causes of intellectual disabilities include the inadequate supply of oxygen to the brain that results in partial or total paralysis and memory loss.