A. Collapse
B. Decline
C. Defeat
D. Disgrace
✅ The correct answer is option A.
Collapse : fail suddenly and completely.
Collapse : fail suddenly and completely.
Decline : (typically of something regarded as good) become smaller, fewer, or less.
Defeat : win a victory over (someone) in a battle or other contest
Disgrace : loss of reputation or respect as the result of a dishonourable action.
Debacle : a sudden and ignominious failure.
Synonym of Debacle is Collapse