"four score and seven years ago our fathers brought forth on this continent, a new nation, conceived in liberty."what rhetorical device is present in the passage?   a allusion b figurative language  c first person plural mode of address d parallel structure i need answer asapi will pick brainliest answer

Shauna has collected a variety of sources for her research about charlie chaplin’s impact on american cinema. in performing her preliminary evaluation of each source, shauna should-thoroughly review and examine the content.-perform a quick search to determine the author’s reliability.-check whether the author agrees with experts on the subject.-decide whether it will be useful in her final essay.