Which of the following lines contains an example of assonance?

a) “rough winds do shake the darling buds of may”shakespeare
b) “do not go gentle into that good night” dylan thomas
c) “hear the mellow wedding bells” edgar allen poe

C. "hear the mellow wedding bells"

Assonance- when two or more words, close to one another repeat the same vowel sound, but start with different consonant sounds.

C) “hear the mellow wedding bells” Edgar Allen Poe

Explanation:

Assonance is the constant repetition of a vowel sound, it´s also called diphthing, in this case you can hear the "e" sound all through the sentence:

"hear thE mEllow wEdding bElls"

This is often used to set a mood, or to re-inforce some words meaning.

stating your point of the article