The "critical period" hypothesis for language argues that
- Acheck_circle
There is a window in early childhood when language is most easily acquired
- B
Vocabulary acquisition reaches its peak only during late adulthood years
- C
Adults can acquire any second language as easily as young children do
- D
Language ability is fully developed at birth and requires no later input
Explanation
Cases like Genie show that lacking language input early can have permanent effects.