If You Were a Lawyer Defending a Client Who Is

If you were a lawyer defending a client who is mentally ill and you were to use the conditions of the American Law Institute model legislation on the insanity defense (1955) you would have to provide evidence that your client

A) was mentally ill at the time of his offense.
B) lacked substantial capacity to appreciate the criminality [wrongfulness] of his offense.
C) lacked a knowledge of the law that he is accused of due to his mental illness.
D) Any of the above would fit the conditions necessary.