Longitudinal studies of deaf children whose parents did not expose them to sign language found that at about 12 months of age __________.

A. the children could not communicate
B. they used a single sign to stand for an object, comparable to hearing children producing their first word
C. their cognitive development was abnormal
D. their signs were ordered in a different way from the telegraphic speech of speaking children


Answer: B

Psychology

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A. should be implemented exactly as written.
B. should be abolished altogether.
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