Question

the massacre at wounded knee in 1890 occurred in response to
the spread of the ghost dance movement.
the us army’s humiliation at little bighorn.
the uprising known as red cloud’s war.
the discovery of gold at pike’s peak.

Explanation:

The Wounded Knee Massacre in 1890 was a response to the spread of the Ghost Dance movement, which was a religious movement among Native Americans that the U.S. government saw as a threat. The US Army’s humiliation at Little Bighorn was in 1876, Red Cloud’s War was in the 1860s, and the discovery of gold at Pike’s Peak was earlier and related to the Colorado Gold Rush, not directly to Wounded Knee.

Answer:

A. the spread of the Ghost Dance movement.