Is it true that we use only 10 percent of our brain? If so, what does that mean? a. At any moment, only 10 percent of brain cells are active. b. You could lose 90 percent of your brain and still do...

Is it true that we use only 10 percent of our brain? If so, what does that mean? a. At any moment, only 10 percent of brain cells are active. b. You could lose 90 percent of your brain and still do what you are doing now. c. About 90 percent of the brain’s neurons are immature and not yet functional. d. No, the statement is false and nonsensical.