3 main divisions of the brain

Describe the 3 main divisions of the brain, AFTER the brain is developed. Pick 1 of these areas and talk about the structures AND functions of those structures in that brain area. Be sure to use complete sentences when answering this question. Full credit for this question will name the three divisions, choose 1 specific division, name the structures that make up the division, AND describe the functions of the structures for that division.