Research by neuroscientists o n the relationship between intelligence and the brain has shown that

a. the strong relationship between head size and intelligence supports Galton's views.

b. women have more neurons than men, o n average.

c. larger brains may be associated with higher intelligence because they have more myelin.

d. there is n o relationship between intelligence and mental quickness.

e. the brains of more intelligent people use more glucose, explaining their intelligence a n d the larger size o f their brains.