What Was the Result in Mattison V

What was the result in Mattison v. Social Security Commissioner, the case in the text involving the issue of whether twins conceived after the death of the father via artificial insemination using his sperm could inherit as children under state intestacy law thereby becoming entitled to social security survivors' benefits?

A) That because the twins were conceived and born after the father's death, they did not survive him as heirs legally and were not entitled to any succession rights.
B) That because the mother had permission from the father to use the sperm after his death, the twins were considered legal heirs and were entitled to succession rights.
C) That regardless of whether or not the mother had permission from the father to use the sperm after his death, the twins were considered legal heirs and were entitled to succession rights.
D) That because the twins were conceived within 30 days of the decedent's death, they were considered legal heirs and entitled to succession rights.
E) That because the mother was alive and the twins were conceived and born after the father's death, they did not survive him as heirs legally and were not entitled to any succession rights; otherwise, had the mother been deceased, the twins would have been entitled to succession rights in regard to the father as well as the mother.