Which of the following resulted from the passage of the black codes after the civil war? emancipated slaves were unable to return to farming jobs. thousands of african americans migrated to the north and west. violence and discrimination against african americans decreased. the republican party was unable to gain the support of african american voters.

The correct option is B.
The black codes is a series of laws enacted by the southern states of America after the civil war in order to restrict the freedom of the freed black slaves. The black codes was aimed at subjecting the black man to servitude. As a result of the black codes, many Black Americans, which are majorly freed slaves moved away from the southern states, where the law was operative to states in the North and the West who have no such laws.