Answer:
A.
They have developed national pidgin languages.
Explanation:
The best example of how many pacific islands have adapted to a mix of different ethnic groups is that they have developed national pidgin languages.
This languages enable communication between this people of different ethnic groups.
A good example of this is the Melanesian Pidgin which is developed and spoken by Malaysians of different ethnic groups.
That is correct. or at least what i would put
