Any writer whose purpose is personal expression sometimes uses words ambiguously. Every poet’s purpose is personal expression. Thus no poetry reader’s enjoyment depends on attaining a precise understanding of what the poet means.
Type- assumption
Boil it down- no poetry reader’s enjoyment depends on attaining a precise understanding of what the poet means.
(A) Writers who sometimes use words ambiguously have no readers who try to attain a precise understanding of what the writer means. - incorrect; it does not mention about poetry reader's enjoyment
(B) Writers whose purpose is personal expression are unconcerned with whether anyone enjoys reading their works.- incorrect - author not caring does not help us
(C) No writer who ever uses words ambiguously has any reader whose enjoyment depends on attaining a precise understanding of what the writer means. - Correct
C on negation breaks the argument
There is at least one writer who ever uses words ambiguously has a reader whose enjoyment depends on attaining a precise understanding of what the writer means.
(D) Most writers whose readers’ enjoyment does not depend on attaining a precise understanding of the writers’ words are poets. - incorrect; it talks about most
(E) Readers who have a precise understanding of what a writer has written derive their enjoyment from that understanding. - incorrect; This does not connect to anything in our evidence. We would be left with more premises and a logically invalid conclusion.
Answer C