The American public was already shocked and horrified from the sinking of the Lusitania and the constant attacks on their ships, The Zimmerman note was the last straw since it finally turned the publics opinions from anti-war to pro-war.
Answer:
B. Giving the National Government the power to collect taxes
<u><em>Mark Branliest if this helps...</em></u>
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Political communications have changed throughout history through debates, social media, and more open-mindedness.
Issues debated:
-Gender equality
-abortions
-politics
-laws
-propositions
-equality
Politicians are very influential when they make their arguments because they give strong examples and claims. Social media is most effective because word comes around faster