All of the Following Factors Identify the Deaf Community as a True

All of the following factors identify the Deaf community as a true culture EXCEPT

A) voluntary organizational networks such as National Theater of the Deaf.
B) long oral history documenting people and events significant to deafness.
C) inclusion of only those who have severe hearing loss.
D) well-established behavioural guidelines with regard to such things as eye contact and physical touching.