B.<em>to gain support for a law that would improve student achievement</em>
Explanation:
This excerpt from a speech by US secretary of education Arne Duncan makes many references to secretary's purpose of speech i.e. gaining support for a law. These references are; "replace it with a law that..." , "A law that recognizes that no family..." , "A law that recognizes the critically hard" and some others. So, option A and C cannot be correct.
Its actually known that Poe uses the word nevermore because "loss will always be part of life" meaning that we cannot hold onto something we have or who we love. a way of saying we can't hold on.
