Which of the following was the final engagement before world war i?

a. assassination of archduke ferdinand

b. formation of triple entente

c. ultimatum to the serbians

d. austrian refusal to partial negotiations

- "schenck v. united states, case in which the u.s. supreme court ruled on march 3, 1919, that the freedom of speech protection afforded in the u.s. constitution's first amendment could be restricted if the words spoken or printed represented to society a “clear and present danger.” "

- speech aimed to potentially create danger could be banned.

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the decreasing neutrality of the u. s. in world war i

hope this : )