Answer:d) a victim precipitated homicide
Explanation:When people are fighting no matter who started the fight but the one who suffers the greatest physical harm is referred to as a victim, irrespective of whether the person started the fight. If the fight ended up being a homicide then the person who died is the victim.
Wolfgang(1967) defines victim precipitated homicide as a deadly act in which the victim was the first person who took the first action that led into that homicide drama in which he was the first to use the physical force against his subsequent slayer.
According to the research the victim is the one who precipitated the incident , given the fact that s(he) was the first one who started the physical violence
In this case Donald says the victim was the first one who took out the knife and started swinging it in the air, this means the victim precipitated the incident.