The expression be-know-do has long defined army leaders. what does the know stand for?

Which of these statements best describes the ambiguity in this excerpt

In the mid-1800s, how did american indians often react to the us government signing treaties with tribal chiefs to establish reservations? many american indians did not accept the treaties and resisted relocating. many american indians fought for land taken away by the dawes act. many american indians bought land in oklahoma from white settlers. many american indians accepted the treaties and relocated voluntarily.

How did southern slaveholders attempt to convince people in the north to support slavery?