第三章I. Each of the statements below is followed by four alternative answers. Choose the one that would best complete the statement.1. The is the smallest functioning unit in the composition of words (Crystal 1985). A. morph B. allomorph C. morpheme D. allophone2. Morphemes are units, which are realized in speech by discrete units known as A. concrete, allomorphs B. abstract, morphs C. abstract, lexemes D. concrete, morphs3. Most morphemes a