Carolynn's Identical Twin Sons Are Participating in a Research Study

Multiple Choice

Carolynn's identical twin sons are participating in a research study that includes MRI scans.The MRI findings will most likely indicate that

A) the areas in their brains associated with verbal intelligence are very different.
B) the areas in their brains associated with spatial intelligence are very different.
C) they have very similar gray-matter volume.
D) they have very different gray-matter volume.