Final answer:
Option D, 'Hills, chills and endless thrills,' is an example of alliteration.
Step-by-step explanation:
Alliteration is the repetition of the same sound or letter at the beginning of adjacent or closely connected words. In the given options, the example of alliteration is option D: Hills, chills and endless thrills. Here, the words 'hills,' 'chills,' and 'thrills' all begin with the same sound 'h.'
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