MLA 8 was designed to simplify the process, helping writers accurately and intuitively cite sources more easily, requiring that every source type follow the same format. This means that books, websites, periodicals, videos, photographs, and all other types of sources now use this same standard format.
I’m pretty sure A but I think someone helped them
I find all of the answers pretty neutral (that is, giving only facts, no judgements) except on sentence 3: this is because of the word "sharply".
It seems that the author of this sentence makes a judgement about the split: that they're very split, that their argument was very intense. It seems like a judgement to me more than the other sentences.
