'A' is accused of the death of 'B'. Which one of the following facts cannot be a disputed fact in his trial.

• A. 'A' strikes B with intent to kill him
• B. 'B' was not an educated person
• C. 'B' provokes A
• D. 'क' की आयु 12 वर्ष से कम थी तथा वह अपने कृत्य का परिणाम नहीं समझता था