Answer:
a
Explanation:
I read it and it makes the most sense
By using black verse, Robert Frost accomplished to break the rules. He is often describes as a metricist.
Robert Lee Frost was an American poet. He used to write about settings from rural life in New England in the early twentieth century in an attemp to examine complex social and philosophical themes.
He was considered one of America's rare "public literary figures, almost an artistic institution;" and he received four Pulitzer Prizes for Poetry.
A) varied
Varied/variety means there's many, which is said in the next sentence.
Paul Laurence Dunbar was born in 1872, seven years after the proclamation of emancipation proclaimed by Abraham Lincoln in 1863 came into effect. In fact, his parents had been slaves in Kentucky before the secessionist war (1861-1865). Paul Laurence Dunbar became the first African-american poet to gain success and recognition by American society and media. He created a great legacy and became an influence for incoming black poets and artist, and was considered a big figure for other well-known abolitionist figures like Frederick Douglass.