What was the main purpose of the freedman's bureau?
to punish former confederate officers
to the planter class regain its control over society
to administer loyalty oaths to african americans
to black and white war refugees

The main purpose of the Freedman's Bureau is to help black and white war refugees.

to help black and white war refugees

Explanation:

Freedman's Bureau was established by congress to help millions of black and white slaves after the civil war. They provide food, shelter, funds to the slaves.They also provide clothing, schools, medical to the slaves.

They solved their day to day problems. A certificate for marriage also provided for the slaves by the Freedman's Bureau. The main success  is to make the slaves economically independent.

they killed other men

explanation:

b.   jim crow laws were enacted in northern states.