The best option from the list would be that Latinos in the United States come from different countries, but they all "<span>c. speak the same language", although a far better definition would be geographical. </span>
The answer is A he was a former enslaved person who became a speaker.
He served in office from Jan. 20th, 1961 to Nov. 22nd, 1963.
C) populism
For future reference: an easy way to remember the causes is to use the acronym MAIN (as in the MAIN causes) to remember that they are militarism, alliances, imperialism, and nationalism.
Hope this helps :)