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

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) Karen,because he attached the cutting board codicil to the will,and that makes it controlling.
C) John,because the judge couldn't read the writing on the cutting board.
D) Karen,because the cutting board codicil meets all the requirements of a valid will.
E) John,because a codicil must be on paper,it was ineffective to change the will.