Which of the Following Is Correct

Which of the following is correct:

A) the burden of proof that the accused was not insane at the time of commission of offence is on the prosecution
B) the burden of proving that the accused was insane at the time of commission of offence is on the accused
C) there is a rebuttable presumption of fact that accused was insane at the time of commission of the offence
D) it is a matter of inference to be drawn by the court on the facts proved by the prosecution.