A, C D those are correct i think
Generally speaking, "A. the average election results of the President of the United States" would not be considered an example of geography's impact on history, since this has little do with with geography in the United States.
Ending the institution of slavery
Answer:
The telegram was considered perhaps Britain's greatest intelligence coup of World War I and, coupled with American outrage over Germany's resumption of unrestricted submarine warfare, was the tipping point persuading the U.S. to join the war.
Explanation: