The smallest unit of sound that can distinguish meaning in a language is called a:AMorphemeBPhonemeCSyllableDGraphemeAnswer: B. Phoneme Read Explanation: The smallest unit of sound that can distinguish meaning in a language is called a phoneme. A phoneme is a basic sound unit that, when changed, can alter the meaning of a word. For example, the "p" sound in "pat" is a phoneme because changing it to "b" creates a different word, "bat". Key points about phonemes:Meaningful distinction: Phonemes are the smallest units of sound that can change the meaning of a word. Language specific: Each language has its own set of phonemes. Study of phonology: The study of phonemes within a language is called phonology. Read more in App