Which statement best differentiates a phoneme from a grapheme?

• A. A phoneme is a sound unit; a grapheme is a letter or letter combo representing a sound
• B. A phoneme is a letter; a grapheme is a sound
• C. They are the same concept
• D. Phoneme only exists in English; grapheme exists in Spanish

Answer: (A)

The key idea is that phonemes are about spoken sound, while graphemes are about written symbols that represent those sounds. A phoneme is the smallest unit of sound in a language—an abstract part of speech and hearing that helps us distinguish meaning in speech. A grapheme, on the other hand, is the written symbol that stands for a phoneme or a set of phonemes. It can be a single letter or a combination of letters. For example, the /f/ sound can be written as f, ph, or ff, depending on the word, showing how one sound can be encoded with different graphemes. This distinction explains why the correct statement is the best: it correctly separates the idea of a spoken sound from the written symbol that represents that sound.

Why the other ideas don’t fit: a phoneme is not a letter, and they aren’t the same thing—one is a sound category, the other a written symbol. Also, phonemes aren’t unique to English; every language has its own set of phonemes, and graphemes exist in the writing systems that encode those sounds.