Examlex
Which of the following can expand the production possibilities frontier?
Babbling
Early stage vocalizations by infants that involve repetition of syllables and are a key aspect of language development.
Syntax
The set of rules, principles, and processes that govern the structure of sentences in any given language, including the order of words.
Babbling
Early stage of language development in infants, characterized by repetitive sounds and syllables.
Speech Development
The process by which children learn to communicate through spoken language, from babbling as infants to forming complete sentences.
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