Allusion is illustrated through the entire poem.
Allusion is an brief and indirect reference to a place, person, thing, or idea of historical, culture, political significance, or literary.
Furthermore allusion doesn't describe in detail the person or thing it refers to.
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Answer:
The answer is C. Ominous music because it creates fear
Where is the sentence you are referring to in the question?
Answer:
To inform people of the natural beauty in a part of America
Explanation:
In the passage above, the author describes how he saw the beauty of the nature and that persuaded him to stop and stare at the beauty nature has to offer.
His thorough description of the beautiful mainlands is because he wants his readers to know what a beautiful place it was. When a reader reads something, he automatically imagines the words in his mind that he is reading and builds a picture of it.
This description will surely let the readers know of the beauty and might as well persuade them to visit those areas as well.