7440. The fetid mound of waste near the town was a major cause of the epidemic.

✅ The correct answer is option C.
Doomed : likely to have an unfortunate and inescapable outcome; ill-fated.

Dangerous : able or likely to cause harm or injury.

Stinking : foul-smelling.

Stagnant : (of a body of water or the atmosphere of a confined space) having no current or flow and often having an unpleasant smell as a consequence.

Fetid : smelling extremely unpleasant.

Synonym of Fetid is Stinking