The cerebral cortex is the highest portion of the brain. true or false

The given statement is True.  

Cerebral cortex is an outer thin layer grey matter that covers the outermost portion of the cerebrum ( the largest part present in the most superior region of the brain).

Cerebral cortex is considered as the highest level of the brain that possesses approximately 20 billion neurons. It is responsible for carrying highest level of mental functioning.

Functions associated with cerebral cortex are-

Determination of Intelligence  and personality, motor activities, processing of sensory information, processing of language, sensation of touch etc.

it's unlikely a majority of a large population would agree on issues

hope this : )