Which sentence contains a pair of words differing by one phoneme?

In this context, the correct choice highlights a pair of words that differ by just one phoneme, illustrating a subtle yet important phonetic change. The phrase “took” and “nap” can represent a juxtaposition in phonemic structure, but they do not directly illustrate a one-phoneme difference.

The sentence that does demonstrate a pair of words differing by one phoneme is found in the choice referring to “bashed” and “basked.” The only difference between these two words is the initial consonant sound: /b/ in "bashed" and /b/ in "basked."

Recognizing the distinction between phonemes is crucial in understanding the building blocks of spoken language and how they contribute to word formation. The exercise helps in reinforcing phonemic awareness, which is vital for literacy development.