23 points how was the emancipation proclamation tied to european and english attitudes toward the civil war?

When the American Civil War began in 1861, the conflict was ignited to end the Confederate rebellion and restore the integrity of the Union. While slavery was a part of this disagreement, the issue alone was not the motivating factor in the North. In 1863, Abraham Lincoln's issuing of the Emancipation Proclamation changed the war's purpose by making it about ending slavery. A strong European reaction to the Emancipation Proclamation was equaled only by the differing American responses. Please give me brainliest answer.

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the answer is a. monarch