Concept:The target consonant sound is the voiced fricative /ʒ/.
Explanation:In
pressure, the underlined letter produces the voiceless sound /ʃ/, as in
ship.
In
pleasing, the underlined letter gives the voiced sound /z/, as in
zero.
In
natural, the underlined letter combination gives the affricate /tʃ/, as in
church.
Only
occasion contains the voiced fricative /ʒ/, which is the same consonant sound as the underlined letters in the question word.
The spelling pattern in
occasion, where the letter
s appears between two vowels, often produces the /ʒ/ sound.
Answer:D. occasion