Answer:  The correct answer is:   [D]: 
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            " {"By silver reeds in a silver stream," .}.
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<u>Explanation</u>:
            Alliteration refers to the repetition —and/or nearby— beginning symbol consonant sounds;  or, for that matter, beginning vowel sounds.
<u>Refer to</u>:
Choice D]:  "{" By <u>s</u>ilver reeds in a <u>s</u>ilver <u>s</u>tream," .}.
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Note the repetition in succession — and nearby — beginning "consonant sounds" from this line of the poem— [specifically, the "ess sound"].
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Note that choice [C]:  "Walks the night in her silver shoon" ; 
          →   <u>is Not</u> the best — or correct — answer— {since the beginning consonant sounds of:
   "<u>s</u>ilver" ;  and:  "<u>s</u>hoon" ;  are in fact "different" from each other.}.
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Hope this is helpful to you!
        Wishing you the best in your academic pursuits
              — and within the "Brainly" community!
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