Which two statements are true about the members of the creek tribes after the civil war

in 1897, pershing became a tactical officer at west point, and that's where he was given the nickname "black jack." pershing's first name is "john," for which "jack" is a nickname, and he was a white man who commanded black troops. hence "black jack".

explanation:

i have ni idea

the answer is a. harriet tubman was a nurse on the battlefield.