<span>2n + 1 = 129
I think this would be correct</span>
The Zimmerman Telegram was "<span>D. a telegram sent by a German foreign minister to Mexico encouraging the nation to go to war against the United States if the United States declared war against Germany," since Germany was increasingly worried that the US would join the war and fight against Germany. </span>
I can't see the Options but here are some reasons why the u.s were forced to fight in ww1
-Germany's attempt to get Mexico to declare war on the U.S (Zimmerman note)
-sinking of ships by German U-boats
- Heavily allied with Britain
The colonies were better off governing themselves without British influence.
I think D: Northern legislatures had already passed the Emancipation Proclamation is your best bet. Lincoln didn't have the right to give the executive order in the states that had congressional representation which was strictly the Union . However, in the rebellious states (the south) he was able to impose his authority over them because they were technically looked at as having committed treason against the Union. Does that make sense?
Hopefully this helped and good luck.