Answer:
E - It allows the author to identify the problems that existed in the previous research.
Explanation:
As the excerpt states in the beginning: " Our thinking, perception, and ability to understand language are processed in the outermost layer of the brain. This area is known as the cerebral cortex. Researchers are still working to understand how the cerebral cortex is organized. Scientists have used a variety of techniques to map the brain's organization over the past century. However, these measures don't always reveal the same boundaries and borders in the brain's landscape." This tells up that there were problems before hand. Which goes with B.
Answer:
If you are wondering what you have to do, just tell about your life (but you don't have to tell everything), and tell one time when your view of the world changed, like when everything seemed clearer for you or much more complicated.
Answer:
Don't do it because it's not good of you to do something dangerous