(A) "The stars danced in the sky" → Personification (II) - Stars are given the human quality of dancing
(B) "She sells seashells" → Alliteration (IV) - Repetition of the 's' sound at the beginning of consecutive words
(C) "I could eat a horse" → Hyperbole (I) - Exaggerated statement not meant to be taken literally
(D) "Life is a roller coaster" → Metaphor (III) - Direct comparison between life and a roller coaster without using "like" or "as"
Hence, Option 2: (A) - (II), (B) - (IV), (C) - (I), (D) - (III) → This correctly matches personification to stars dancing, alliteration to the repeated 's' sounds, hyperbole to the exaggerated eating claim, and metaphor to the life comparison → correct