Studies of Congenitally Deaf American and Chinese Children Who Had

Studies of congenitally deaf American and Chinese children who had never been exposed to any formal sign language demonstrated that the children:

A) learned only a small number of "home signs," and did so by modeling their parents.
B) invented only a small number of "home signs" in order to communicate just their basic needs.
C) spontaneously imposed a rudimentary grammar on their "home signs."
D) were essentially unable to communicate with their families.