1.     The etiology of childhood depression is multifactorial and

may include biological factors. Which of the following is a true statement with respect to hormonal studies in depressed children?
A.
Prepubertal children having a depressive episode secrete significantly more growth hormone during sleep than nondepressed children.
B.
Polysomnography demonstrates significantly reduced rapid eye movement (REM) during depressive episodes.
C.
Thyroid stimulating hormone (TSH) levels are elevated > 50% above the upper limits of normal in the majority of children with depression.
D.
Magnetic resonance imaging (MRI) studies in depressed adolescents reveals low ventricular volume and increased frontal lobe volume.