Concept:The symbol /eɪ/ is a diphthong sound that starts with an /e/-like sound and glides into /ɪ/.
Explanation:Option A: "said" is pronounced /sed/, so it does not contain /eɪ/.
Option B: "gale" is pronounced /ɡeɪl/, where the vowel sound is exactly /eɪ/.
Option C: "seize" is pronounced /siːz/, with a long /iː/ sound, not /eɪ/.
Option D: "nine" is pronounced /naɪn/, containing the diphthong /aɪ/, not /eɪ/.
Therefore, the word that contains the sound /eɪ/ is "gale".
Answer:B. gale