B. To indicate whether the library owns a particular book
I believe the answer is B, correct me if i'm wrong :)
Claims and support are related because claims are statements that are made by authors in relation to some subject matter that are backed up by "support" or evidence. Therefore, based upon these options, "An author will use support to back up a claim." This claim and support are what authors use to create arguments in writing to make a point and to express a perspective on a particular issue.
Answer: Metaphor
Explanation:
A Metaphor helps describe a character or variable by relating it to another character or Variable that is seemly unrelated to it but bears certain characteristics to it for comparison sake.
It essentially says one thing is another so that the original thing can be understood better.
For example, "every family has a black sheep". It is not saying that every family will have a sheep which is black but rather saying that at least one member of each family behaves differently from the rest.
In the above extract from Toni Cade Bambara's short story "Raymond's Run", Squeaky who is Raymond's sister is using a metaphor to describe her brother's penchant for using the curb as a Circus clown uses a rope high in the air.