Answer:
b I hope this is right and I hope you have a good day 
 
        
                    
             
        
        
        
Britain- <span>-Intercepted the Zimmerman note, large orders from US for war materials
Germany- </span><span>unrestricted submarine warfare, sinking of the Lusitania, wrote Zimmerman note
Russia- </span><span>changed the government from monarchy to representative government
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Answer:
By changing their war-goals from “quelling the rebellion” to “quelling the rebellion and also ending slavery,” the Emancipation Proclamation gave the Union the moral high ground, an increase in relations with European powers, and a potentially large new segment of manpower ripe for recruitment.
A brainliest would be really nice! Thank you~ :D