Answer: I think it's A
Explanation:
The sentence that describes a cause of the decline of the Roman Republic is "There was a shortage of labor after a slave rebellion." Since 324 BC, the Roman Republic began to have many difficulties and crises that represented the path to the end of the Republic.
The correct answer is 1860
The adopted it because they feared that if they were to intervene it would escalate. Also because the non intervention would prevent a war from happening in the European side of the world.
(let me know if you need a more detailed explanation)
