Use quotation marks [ “ ” ] to set off material that represents quoted or spoken language. Quotation marks also set off the titles of things that do not normally stand by themselves: short stories, poems, and articles. Usually, a quotation is set off from the rest of the sentence by a comma; however, the typography of quoted material can become quite complicated. Hope that helped
A plot is closely related to subject matter. This is where the story that is written directly discusses the general theme or the general subject that will be portrayed by the writer through his thorough writing. Plots are designed for readers to understand the material's overall content and how the story would probably go.