Concept:The underlined letters sp in "spit" represent the consonant cluster /sp/ spoken together at the start of the word.Explanation:The word "spit" is pronounced /spɪt/, so its first sound combines /s/ and /p/ together.We must choose the word that begins with exactly the same consonant cluster, /sp/."Spill" is pronounced /spɪl/, and it starts with the same two consonant sounds /s/ and /p/."Sprint" begins with /spr/, adding an extra /r/ sound after /p/."Split" and "splendour" begin with /spl/, adding an extra /l/ sound after /p/.These added consonant sounds make the clusters /spr/ and /spl/, which are not the same as /sp/.Only "spill" shares the identical initial consonant sound.Answer:D. spill