Both A and C are correct. The decedent leaves no spouse. Both B and C are correct. None of the above are correct. Some states have statutes preventing the killer from taking by descent or distribution from the estate of the victim.
Some states allow legal title to the property pass to the killer in spite of the crime.
Some states allow legal title pass to the killer, but equity holds that killer to be a constructive trustee for the heirs or next of kin of the decedent. Only A and C. A, B and C are correct. In Ronner's will, there is a no-contest clause. It provides that if Barry contests the will he shall take nothing in lieu of the provisions made for him in the will. Enforce the no-contest clause unless the court determines that there is probable cause for the contest.