Answer:
B. Southern plantation owners
Explanation:
Slaves were necessary for plantations to function, these plantations made up the entirety of the southern economy. So plantation owners argued that slaves were necessary for the economy.
Answer: B
<em><u>B) the Philippine American war</u></em>
Philippine-American War was not related to any of the causes of WW1
Hope this helped :)
c) are often decided by a judge instead of a jury