21. "I once started reading about how chim-
neys work," I told Tom, "but the informa-
tion seemed like it was written
solely for chimney engineers."
(A) burnished
(B) mottled
(C) esoteric
(D) coerced
(E) gauntleted

Unity in a paragraph means: my writing persuades my readers to agree with the argument i am presenting. the paragraph discusses and supports one thought throughout the entire paragraph. all sentences in a paragraph are the same length and structure. the first sentence and the last sentence echo the exact same thought.