Which of the sections of the human brain has undergone the greatest changes in the process of evolution

Which of the sections of the human brain has undergone the greatest changes in the process of evolution, what are these changes and how did this affect the life and behavior of a person?

1) The greatest changes affected the forebrain, so this is due to the development of its large hemispheres.
2) A cerebral cortex has formed in humans with furrows and convolutions.
3) A person has become capable of verbal communication, abstract thinking, complex behavior

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.