Civil war started in April 13, 1861
The main cause of the war was slavery
The president during Civil war was Abraham Lincoln
I would advise that she either goes to her school library or a local library. If that is not possible, she could also ask her parents if they can schedule the visit to another date. She could also go to a friend's house anyway studying with friends is enjoyable and advantageous.
The answer must be C because that's what the paragraph mostly talks about
