Which of the Following About Family Violence Is True

Which of the following about family violence is true?

A) The primary motive people have for killing their spouses is finances
B) The husband's age is a better predictor than the wife's age for the chances of the wife being murdered
C) Biological parents are more likely to kill their children than stepparents.
D) More homicides within families occur between spouses that are not genetically related than between blood relatives