According to the article At a Loss for Words, about a teenager (E. M.) who was profoundly deaf in early life described E. M.'s language as being:
(a) inferior to a 3 or four year old child
(b) about the same as a 10 year old child
(c) almost normal for a teenager in spite of poor early experience
(d) advanced for his age within a few months after his hearing was restored
A
Psychology