Concept:The sentence requires a legal term for causing the death of another person.
Explanation:The blank describes the crime of causing a neighbour's death.
"Homicide" means the killing of one human being by another, covering both lawful and unlawful killings.
In law, being "charged with homicide" means accused of causing a person's death.
Option B, "fratricide", means killing one's brother.
Option C, "patricide", means killing one's father.
Option D, "genocide", means the deliberate killing of a large group of people of a particular nation or ethnic group.
Only "homicide" fits the general context of causing a neighbour's death.
Answer:A. homicide