The mood of the story is created by the length
The bottom sentence is a run on.
A metaphor would be a figure of speech which makes an implicit or hidden comparison between two things that are unrelated but share common traits.
Example: the assignment was a piece of cake (which would mean the assignment was easy)
So comparing your family you could say they are a team cause they support you, or tree cause they are your roots I can't think of anything else but you get the idea!
The correct answer is C. A procedural document is one in which a procedure is described. A graph would be a good media element to add, since it is a visual aid that can clarify and illustrate the procedure being described in the document. Also, since documents are written texts, a graph can easily be added. The same is not true of options like adding music or an audience. Besides that, usually documents are written with a especific audience in mind. Bullet points could be added, but they would not contribute much to adding visual interest and clarity to the document. At least not as much as the graph