Split-Brain Patients Benefit from the Procedure in the Form of Fewer

Split-brain patients benefit from the procedure in the form of fewer seizures. How has cognitive psychology benefited?

A) This procedure has led to the well-supported notion that someone can be "left-brained" or "right-brained."
B) Research with these patients suggests that there is not significant localization of function in the brain.
C) Research with these patients suggests that someone cannot live without an intact corpus callosum, indicating its importance in survival and functioning.
D) The procedure indicates that you can cause damage to the brain with no adverse cognitive effects.