Correct option is D
The correct one-word for the given group of words is (d)
cannibal.
A
cannibal is a person who eats the flesh of other human beings.
Example: Ancient stories often describe wild tribes as cannibals.
Meanings of the other options:
· (a)
ethnic: Related to a particular cultural group.
· (b)
tribal: Related to tribes.
· (c)
humane: Kind or compassionate.