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The answer would be : A ) But
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<u>Answer:</u>
<em>W.B Yeats makes use of the elegiac tone to set the mood of the poem. </em>
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<u>Explanation:</u>
The poem written by Yeats focuses on the loss which imparts some kind of sadness and grief. The writer prepares the reader of the feelings contained in the poem. The loss taken by the reader is in the bittersweet manner as it also makes him confront with both the beauty and the loss throughout the poem. The loss had started when he first saw the swans. The soreness of the author’s heart is depicted in the lines.