Which of the Following Was NOT a Provision of the American

Which of the following was NOT a provision of the American Law Institute recommendations regarding "diminished capacity"?

A) A mentally ill criminal may actually not have criminal intent.
B) A mental illness could impair the ability to understand that one's behavior is criminal.
C) Proof of either mens rea or actus rea is sufficient to convict someone of a crime.
D) Mentally ill people who commit crimes may not be responsible for their behavior.