The given sentence is in active voice. Change the voice of the sentence. Select the correct option from the sentences given in options.
I know he will play his guitar.

A

His guitar will be played by him is something I know.

B

It is known to me that his guitar would be played by him.

C

It is known to me that his guitar will be played by him.

D

His guitar will be played by him is know to me.