Burea of labour statastics
Answer:Archduke Franz Ferdinand of Austria, heir to the Austro-Hungarian throne and his wife Sophie, Duchess of Hohenberg were assassinated in Sarajevo on 28 June 1914. They were shot to death by Gavrilo Princip, a Bosnian student and member of the Serbian secret society "Black Hand".
Explanation:
The answer is B. and C.
I hope i helped out! Feel free to mark brainliest!
3. The Seventeenth Amendment altered the process for electing United States Senators and changed the way vacancies would be filled. Under the original constitutional provision, state legislatures filled vacancies when a Senator left office before the end of their term.
I have no clue about the others sorry to disappoint