This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Forensic Medicine
Mc Naughten's rule : 
Select and explain. 
A. Section 84, B. Section 85, C. Section 86, D. Section 87
A: Section 84
Answer: A: Section 84 
Explanation: A i.e. Section 84