Multiple choice. which of the following most adequately completes this sentence? the consonant speech sounds in the american-english language are represented by a. the distinctive speech sounds we associate with the 21 consonant letters of the alphabet. b. 18 of the consonant letters of the alphabet plus certain digraphs. c. the single letter consonants plus their two and three letter blends. d. the american english language s too irregular to represent the consonant speech sounds with any degree of accuracy