Your Roommate Is Convinced That We Only Use 10 Percent

Multiple Choice

Your roommate is convinced that we only use 10 percent of our brains.Which of the following statements would be best to use to persuade her that this is not true?

A) Brain scans indicate that although the entire brain is not active at the same time,each part has an important role to play.
B) It is not reasonable to use an organ so infrequently when it requires so many resources.
C) In the course of evolution,it is unlikely that we would evolve an organ unless its use provided us with some advantages.
D) All of the above.