Which of the following students best summarizes the information about visual cues and speech perception?

a. Dawan: "Adults who have normal hearing often fail to appreciate the visual cues, even though these cues are helpful."
b. Cheryl: "Surprisingly, adults can perceive speech just as accurately without visual cues as they can with visual cues."
c. Ralph: "Adults cannot distinguish among the visual cues associated with the phonemes, so they do not link these cues with the auditory stimuli."
d. Tiffany: "Although children pay attention to these visual cues, adults do not."

Ans: a