7,________is a linguistic situation in which two standard languages are used by anindividual or by a group of speakers, such as the inhabitants of a particular regionor a nation

7,________is a linguistic situation in which two standard languages are used by anindividual or by a group of speakers, such as the inhabitants of a particular regionor a nation

A.Creole

B.Vernacular

C.Bilingualism

D.Diglossia

正确答案是C