Concept:The question tests whether you can hear a particular consonant sound in a word, not whether the letter appears in the spelling. Some written letters are silent.
Explanation:A. calm is pronounced /kɑːm/. The letter
l is silent, so it does not contain the /l/ sound.
B. lamb is pronounced /læm/. The letter
l is pronounced, so it contains the /l/ sound.
C. could is pronounced /kʊd/. The letter
l is silent, so it does not contain the /l/ sound.
D. salmon is pronounced /ˈsæmən/. The letter
l is silent, so it does not contain the /l/ sound.
Among the four options,
lamb is the only word in which the letter
l is actually heard in speech.
Answer:B. lamb