Which of the following best describes a bound morpheme? 1 a word that has no meaning 2 an affix that stands alone 3 an affix that has no meaning until it is combined with a free morpheme 4 none of the above

A bound morpheme is a word element that cannot stand alone as a word, and includes prefixes and suffixes. So the right answer would be 3. Free morphemes, on the other hand, can stand alone as a word. Attaching a bound morpheme to a free morpheme creates a new word.

Ithink it would be the answer choice d. sorry if i'm incorrect.