According to the selection from The Future of the Mind, which of the following is the most important reason scientists were motivated to study Einstein’s brain? a. They wanted to find out whether Einstein’s brain showed signs of disease or decay.

b. They wanted to learn how to develop children’s brains to make them more intelligent.

c. They wanted to learn how to develop their own brains to make themselves into geniuses.

d. They wanted to find out whether Einstein’s brain showed differences that might explain his genius.