Concept:The given phonetic symbol is the diphthong /aʊ/, as in “how”.
We need to choose the word that contains this exact vowel sound.
Explanation:Option A: howl is pronounced /haʊl/.
It clearly contains the /aʊ/ sound.
Option B: law is pronounced /lɔː/, not /aʊ/.
Option C: flow is pronounced /fləʊ/, not /aʊ/.
Option D: note is pronounced /nəʊt/, not /aʊ/.
Therefore, only “howl” has the required sound.
Answer:A. howl