Why Should an Underlying Medical Condition That Is the Cause

Why should an underlying medical condition that is the cause of delirium be treated in a timely fashion?

A) The longer delirium continues, the more likely the person is to suffer permanent brain damage.
B) The longer delirium continues, the more likely the person is to become verbally abusive.
C) The longer delirium continues, the more likely the delirium can result in a mild form of dementia.
D) The longer delirium continues, the more likely the person is to suffer severe depression.