Concept:The given phonetic symbol is the diphthong /aɪ/, as heard in the word "pie".
Explanation:The correct word must contain this vowel sound.
Check each option carefully.
"Freight" is pronounced /freɪt/, so it has the /eɪ/ sound, not /aɪ/.
"Faith" is pronounced /feɪθ/, so it also has the /eɪ/ sound.
"Said" is pronounced /sed/, which contains the short /e/ sound.
"Piety" is pronounced /ˈpaɪ.ə.ti/, and its first syllable has the /aɪ/ sound.
Only "piety" matches the given phonetic symbol.
Answer:D. piety