A client charged with assault pleads not guilty by reason of insanity under the Durham Rule. Which statement best reflects the criteria used in this legal standard?

Choice A reason: The Durham Rule states that a defendant is not criminally responsible if their unlawful act was the result of a mental illness or defect. This directly matches the legal standard, making it the correct choice. Choice B reason: The “irresistible impulse” test applies when a person cannot control their actions despite knowing right from wrong. This is not the Durham Rule’s standard. Choice C reason: This statement describes the M’Naghten Rule, which requires proof that the defendant did not understand the wrongfulness of their act. It does not represent the Durham Rule. Choice D reason: Temporary intoxication or delirium does not meet the criteria under the Durham Rule. Voluntary intoxication in particular is not considered a valid legal defense.