Who Will Be the Primary Beneficiary of Mark's Estate, Karen

Who will be the primary beneficiary of Mark's estate, Karen or John?

A) John, because even though a codicil may be handwritten, it is invalid unless the first will is destroyed.
B) John, because the judge couldn't read the writing on the cutting board.
C) John, because a codicil must be on paper, it was ineffective to change the will.
D) Karen, because the cutting board codicil meets all the requirements of a valid will.
E) Karen, because he attached the cutting board codicil to the will, and that makes it controlling.