I find the media the most important because their role is to inform, criticize, and stimulate debate.
Algeria was a French colony back in the day, so obviously no colonial country would want any of its colonies to gain independence. Just take a look at Britain and America - America consisted mostly of colonists from England who then decided they wanted freedom to become a separate country. Algeria used to belong to France, which means that all of its resources and money also belonged to France, which is something it didn't want to lose.
I believe the correct answer from the choices listed above is the second option. Pittsburg Landing fit into the Northern strategy in fighting the war by the Union wanting to gain control of the tributaries that flowed into the Mississippi River.
Hope this answers the question. Have a nice day.
they claimed that without slaves the economy would collapse I think, I'm not quite sure if I'm remembering correctly though