What do the corpus callosum and anterior commissure have in common? a. they both produce csf. b. they are made up of gray matter. c. they both connect the two hemispheres. d. they each have six laminae?

Answer is: c. they both connect the two hemispheres.
Corpus callosum is a wide commissure beneath the cerebral cortex in the brains of placental mammals. Corpus callosum connects the left and right cerebral hemispheres and enables communication between the hemispheres.
Interior commissure is a bundle of nerve fibers, connecting the two temporal lobes of the cerebral hemispheres across the midline.