| A) | Pinpointed an area of the brain that is critical for language processing.
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| B) | Proposed that three sequential frameworks help us understand language development.
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| C) | Believes humans are biologically prewired to learn language.
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| D) | Stresses adults' role in constructing a child's communication environment.
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| E) | Demonstrated that children can apply language rules to novel situations.
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| F) | Proposed mean length of utterance (MLU) as an index of language development.
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| G) | Offered ideas to help parents facilitate children's language development.
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| H) | Said 6-month-old infants can distinguish sounds they need for later speech.
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