Answer:
First World War Causes
World War I began after the assassination of Austrian archduke Franz Ferdinand by South Slav nationalist Gavrilo Princip on June 28, 1914. Read more about Franz Ferdinand. Read more about why the Balkans became the “powder keg of Europe.”
Explanation:
1. Thomas Jefferson purchased lousianna territory w/o congress approval
2. Franklin D. Roosevelt expanded the role in the federal gov
3. Lincoln raise an army before congresses approval
I rhink the answers should be a and b
A for sure because section in main idea in the sub section are details that why