Concept:The question tests how well you can match the consonant sound of the underlined letters with the same sound in another word.
Explanation:The underlined letters in the source word produce the sound
/ʃ/, which is like the “sh” sound in “ship”.
Now look at the consonant sound in each option.
“sign” begins with the sound
/s/.
“same” also begins with the sound
/s/.
“wash” has the sound
/sh/ between its vowel and final consonant.
“sin” begins with the sound
/s/ once again.
Only “wash” contains the sound
/sh/ that matches the underlined letters.
So the word with the same consonant sound is “wash”.
Answer:C. wash