The M'Naghten rule lists three components to be used as a defense in criminal cases. One of the components is that at the moment of the crime, the accused must have:

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The M'Naghten rule states that the accused must have been laboring under a defect of reason at the time of the crime. This means that they did not understand the nature and quality of their actions or did not know that what they were doing was wrong. This could be due to a mental illness, defect, or disease, and it must be proven by the defense. The other options (B, C, D) are not components of the M'Naghten rule.

The M'Naghten Rule Lists Three Components to Be Used as a Defense