Final answer:
During Rome's decline, Roman leaders were plagued by corruption, poor decision-making, and insanity.
Step-by-step explanation:
During Rome's decline, three things that plagued Roman leaders were corruption, poor decision-making, and insanity.
Corruption was widespread among Roman leaders, with many politicians and officials engaging in bribery and embezzlement for personal gain. Poor decision-making was also prevalent, as leaders often made choices that led to further decline and weakened the empire. Additionally, mental instability and insanity among some Roman leaders further contributed to their inability to effectively govern.
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