What Is a Language "Instinct

What is a language "instinct?"

A) It is a form of instinctive communication found across species.
B) It is the necessity to make and use language in order to survive physically.
C) It is the instinct to acquire the language of the group into which you are first socialized as a child.
D) It is the instinct to speak the language of your mother,acquired during the developmental stage of the fetus.
E) It is the ability to speak only one language fluently and as primary vehicle of communication.