Which of the following explains why the U. S. army gunned down unarmed Sioux at Wounded Knee Creek, South Dakota in 1890?

The following reason explains why the U. S. army gunned down unarmed Sioux at Wounded Knee Creek, South Dakota in 1890:

American soldiers feared an uprising provoked by a militant interpretation of the Ghost Dance religion.

Explanation:

Ghost Dance is such a religion which is lying on the basis of Wovoka's prophecy. That states the end of white expansion by Indians and also preaching the lessons of clean living, honest life and cooperation between different cultures. This religious movement wanted to restore the cultural traditions of Indians who were living in the western parts of the United States of America. In 1890, the U. S. army gunned down unarmed Sioux because soldiers feared that uprising has been provoked by the militant interpretation of the ghost dance religion.