Tại sao trong những năm 36-39 Đảng có những chủ trương mới

d hope this

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".

a.

congress passed laws allowing for free passage between states.

the answer would be:

b. race