Concept:The symbol /ʊ/ stands for a short vowel sound heard in words like “hook,” “book,” and “look.”Explanation:Say each option aloud and listen carefully to the vowel sound.“Hook” has the /ʊ/ sound: /hʊk/.“Souse” has the /aʊ/ sound: /saʊs/.“Cool” and “juice” both have the long /uː/ sound, not /ʊ/.So the only word containing /ʊ/ is “hook.”Answer:A. hook