The conclusion to your essay should restate the main idea include bibliographic information explain why you have proven your thesis leave a vivid impression on the reader

restate the main idea.

The conclusion is one of the most important parts of an essay, as it is the last chance the author has to persuade the reader of his position. The conclusion, therefore, is often used to restate the main idea of the text. It is also used to give a sense of closure and completeness to the work.

some attention getter quotes to support your thesis regarding brain work could be the following: :

a. storage capacity of your brain is virtually unlimited.

b. your brain produces sufficient electricity to light-up a small bulb.

c. different brain circuits are involved with reading aloud or silently.

d. your brain by itself does not feel pain.

e. reading allows your brain to download info directly.

f. brains of two musicians performing together can synchronize.

i think the answer is b