Compared with the Brains of People with Average Intelligence, the Brains

question 2

Multiple Choice

 Compared with the brains of people with average intelligence, the brains of highly intelligent people

• A) do not show any systematic structural differences, because intelligence is determined by environmental factors, not biological factors.
• B) show higher volumes of gray matter and cortical thickness in the prefrontal and temporal lobes.
• C) show thinner cortical layers.
• D) are actually smaller in volume, making them operate more efficiently.