Which of the following events led to the massacre at wounded knee? (select all that apply.)
a. the lakotas left the pine ridge reservation and set up camp.
b. the lakotas started to sing ghost dance songs.
c. the lakotas surrendered their weapons to forsyth and troops.
d. black coyote and an army soldier fought over a rifle.
e. the lakotas were told that they would be relocated.