<span>it is the popular sovereignty</span>
It was the population policy of the 21st century.
When 20th century ends, the desirable social goal
was sustained and broadly accepted from local and regional levels to the world.
To most citizens of America, the population is not really an issue, but it has
been for the past decades because low population may mean demographic issues.
<em />It was a watershed event because it showed that the local culture and local people were done with being treated in a bad manner and that they will not allow for their culture to end. Their culture started getting incorporated in mainstream culture afterwards and this can be seen up to this day.<em>
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Your answer to that would be A.