Five score years ago, a great American, in whose symbolic shadow we stand today, signed the Emancipation Proclamation. This momentous decree came as a great beacon light of hope to millions of Negro slaves who had been seared in the flames of withering injustice. It came as a joyous daybreak to end the long night of their captivity... In a sense we have come to our nation's capital to cash a check. When the architects of our republic wrote the magnificent words of the Constitution and the Declaration of Independence, they were signing a promissory note to which every American was to fall heir. This note was a promise that all men, yes, black men as well as white men, would be guaranteed the unalienable rights of life, liberty, and the pursuit of happiness. Which statement BEST describes the author's use of vocabulary appropriate for his audience and his purpose?
A) The author uses casual, informal vocabulary and quotations from American leaders to connect to his audience.
B) The author uses Standard American English and metaphors to connect to his audience.
C) The author uses formal language and technical terms to connect to his audience.
D) The author uses questions and sarcastic humor to connect to his audience. Eliminate