Murder of a king

A. Infanticide

B. Matricide

C. Genocide

D. Regicide

Answer: Option D

Solution(By Examveda Team)

One word substitute is Regicide.

Infanticide: the practice in some societies of killing unwanted children soon after birth.
Matricide: the killing of one's mother.
Genocide: the deliberate killing of a large group of people, especially those of a particular nation or ethnic group.
Regicide: the action of killing a king.