Sumi Is Raising Twins

Sumi is raising twins.One twin is genetically male and the other twin is genetically female.How different are their brains expected to be?

A) The genetically male twin is "left-brained," while the genetically female twin is "right-brained."
B) The genetically male twin is "right-brained," while the genetically female twin is "left-brained."
C) The genetically male twin's brain is most likely smaller than the genetically female twin's brain.
D) The genetically male twin's brain is most likely larger than the genetically female twin's brain.