alleryA four-month-old cannot talk because:
Ano one has taught it words
Bits brain is not mature enough
Cits mouth is too small
Dits lungs are too weak
Answer & Solution
Correct answer: B. its brain is not mature enough
1. Changes in the brain and nervous system account largely for maturation.
2. A four-month-old cannot use language because the brain has not matured enough to allow talking.
3. By two years the brain has developed further and, with help, the child can say and understand words.
_Source: Virginia Cooperative Extension Publication 350-053, Human Growth and Development: A Matter of Principles (Ruffin), "Principles of Development"_
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