Phonemes are exemplified as the smallest unit of sound that differentiates one word or letter from the other with each conveying a distinct sound of their own. However, there are twenty-six letters in English, but there are 44 phonemes in the English language. Phonemes are the smallest perceptually varied sounds that are combined to make words. Thus, among the given options, the sentence that best exemplifies a phoneme is the consonant sound "d" as it is the only one that represents the smallest unit of sound while the other options offer a combination of phonemes(words). Therefore, <u>option A</u> is the correct answer.
