In New Guinea,tribes that had been isolated for centuries were found that
A)had a large number of sophisticated language systems.
B)had languages that were more primitive than languages of most non-isolated societies.
C)communicated by hand signals but not verbal language as we know it.
D)had just a few language systems that were all governed by similar rules.

Question

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Studies of isolated tribes in New Guinea have revealed a surprising number of sophisticated language systems, with some tribes having as many as 12 distinct languages. This challenges the long-held belief that isolated societies have less complex languages than non-isolated societies.

In New Guinea,tribes That Had Been Isolated for Centuries Were