English morphology balances relatively poor inflection with rich derivation and compounding. Affixation (e.g., un-, re-, -ness, -ize) supports lexical productivity, while conversion (zero-derivation) enables category shift (“to google a term”). Morphological transparency affects processing speed and acquisition (cf. Bauer & Lieber). In pedagogy, word families and morphological strategies (cf. Nation) outcompete rote lists for durable vocabulary growth. Choose the correct option.