Answer:
freed from restrictions and nonexistent boundaries
The infamous line from John Muir's "The Calypso Borealis- 'Where ha ye come fra? The swamp, that awfu' swamp" shows an example of dialect.
One example of the author keeping a lively tone even while discussing a disease is "The author humanizes the prion with playful language by saying '[i]f it..."
<h3>What is tone?</h3>
In literature, the term tone refers to the way an author or a narrator approaches a certain topic, that is, his attitude towards it. Examples of tone are the following:
The passage we are analyzing here manages to maintain a lively tone even though the author is describing a serious disease that affects cow. The reason why the tone is lively is the fact that the author humanizes the prion with playful language by saying "[i]f it manages to burrow into a corner." This conveys a funny, almost cute image, of how the protein that causes the disease functions.
With the information above in mind, we can choose option D as the correct answer choice for this question.
Learn more about tone here:
brainly.com/question/18579106
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