B is the answer
Hope this helps!
Secondary Sources
Speech by Martin Luther King against the Vietnam War
http://www.americanrhetoric.com/speeches/mlkatimetobreaksilence.htm
Website for Special Operations, Navy SEALS
http://www.specialoperations.com
Abbreviated Timeline
http://www.english.uiuc.edu/maps/vietnam/timeline.htm
The answer is, D<span>uring the nineteenth century, it was perceived to be undignified for a president to campaign on his own behalf.
Basically, people don't like candidates to campaign for themselves on the things that they have done. Especially in publications where they would want to post for elections which is a selfish act in view of the people especially for a running President. They usually give small speeches in a dignified way.
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The consequences of the Black Death were numerous and varied. Countless workers died, ravaging families through failed means of survival and causing personal affliction; landowners who used laborers as tenant farmers were also impacted. It is estimated to have abolished 30 percent to 60 percent of the European population.
Answer:
Venustiano Carranza
Explanation:
On April 10, 1919, Emiliano Zapata was assassinated by agents of Venustiano Carranza, Mexico's president and an opponent of Zapata's land reform agenda