A part of speech that is used in a sentence before a noun to signify a single or the certain
noun

Preposition is before a noun to signify a single or the certain noun.

Explanation:

I hope this helps.

the correct answer would b,   to show that she was very influential in the democratic party.

b. the poet identifies with private people.

    in the stanza, dickinson states she doesn't wish to seek fame and recognition from the public eye. nor is she afraid of authority figures, and you can definitely tell she isn't hiding something. more as she identifies with private people, who are not known by the community