In Terms of Intelligence, What Is the Significance of the Fact

In terms of intelligence, what is the significance of the fact that the brains of males are on average about 10% bigger than the brains of females?

A) Males are more intelligent than females are.
B) Males are better at math and science than females are.
C) The brain grows more in response to male activities than to female activities.
D) There is no significance, as brain size has little to do with intelligence.