For the question, choose the option that has the same consonant sound as the ones represented by the letter(s) underlined.
house
Answer Details
The underlined letter in house is h, which produces the voiceless glottal fricative /h/. This is the breathy sound made at the back of the throat when air passes through the open glottis.
Now consider each option:
happy - the "h" is pronounced as /h/, the same sound as in "house."
rhythm - the "rh" combination is pronounced /r/; the "h" is silent.
ghost - the "gh" is pronounced /g/; the "h" is silent.
honour - the "h" is completely silent; the word begins with the vowel sound /ɒ/.
The correct answer is happy, because it is the only option where the letter "h" produces the same /h/ consonant sound as in "house."