Answer:
Congress was effective in delaying the war, but their refusal to decisively address the issue of slavery led to their inability to prevent war.
Step-by-step explanation:
The other answer is correct.
Congress was completely ineffective in preventing the Civil War because the Southern states still seceded. This option is best drawn because of the fact that that in the case of the 2nd option, they did not delay the war in any way. It was only a matter of time until the war happened, and nothing could have stopped it from happening. Once the Southern states made the decision to secede, the war was inevitable.
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