Within the human forebrain, which of the following structures does not belong to the teleccephalon [tel-en-SEF-uh-lon]?

W) Basal nuclei

X) Hippocampus [hip-uh-KAM-puhs]

Y) Hypothalamus [hy-puh-THAL-uh-muhs]

Z) Cerebral cortex
Y) HYPOTHALAMUS