Reasoning always lays out how a piece of evidence—either a fact or an example from the text—supports your claim. ... If you just give evidence and reasons without reasoning, you give the reader the opportunity to interpret the evidence however he or she wants
Evidence answers the question it tells why it happened. Reasoning is basically connecting the dots between new evidence and old information you already have and creating a conclusion.
Because the definition of a quotation is words or phrases that are taken from someone else or from literary work or the asking price of something. An example of a quotation is when you take a passage from Shakespeare and repeat it as written without changing any of the words