The term "Phatic Communion" originates from ______ study of the functions of language used on Trobriand Islands which refers to the social interaction of language.

A．To encourage them to be confident.
B．To support them financially.
C．To urge them to be dependent.
D．To keep an eye on their emotions.

A．Puritan settlers witnessed the witchcraft of American Indians.
B．frontier refugees couldn’t admit their own defeat.
C．the early European settlers lacked the sense of security.
D．hundreds of American Indians died of the witchcraft accusation.