In the word unsustainable, the un-, sustain, and -able are all examples of(1 point)

Question

Responses

base words.
base words.

affixes.
affixes.

morphemes.
morphemes.

roots
roots

Answer 1

The correct response is morphemes.

Morphemes are the smallest units of meaning in a word, and in the case of "unsustainable," "un-," "sustain," and "-able" are all morphemes that contribute to its overall meaning.