Which is NOT a reason that the 14-year-old sister has problems with her mother（）

A．Second generation immigrants are usually eager to learn their parents' native language.
B．It is often hard for first and second generation family members to communicate with each other.
C．Because second generation immigrant children often speak only English, they may lose their ethnic identity.
D．Sometimes second generation immigrant children ignore their parents because of language differences.

A．Many immigrant families have problems with communication.
B．Second generation Korean immigrants often speak only English.
C．The language spoken in immigrant households is often a mixture of two languages.
D．Teaching immigrant children the parents' native language helps them establish their ethnic identity.