7804. The kingdom suffered a constant threat from certain predatory tribes.

✅ The correct answer is option D.
Wild : (of an animal or plant) living or growing in the natural environment; not domesticated or cultivated.

Violent : using or involving physical force intended to hurt, damage, or kill someone or something.

Rebellious : showing a desire to resist authority, control, or convention.

Plundering : steal goods from (a place or person), typically using force and in a time of war or civil disorder.

Predatory : seeking to exploit others.

Synonym of Predatory is Plundering