Together, the Black Codes and actions of white extremist groups A protected the rights of formerly enslaved people
B inspired most people to accept the new ways of life
C helped improve life in the Reconstruction-era South
D circumvented rights in the Civil War Amendments

30 and 44 are b

explanation:

the monroe doctrine is the best known u.s. policy toward the western hemisphere. buried in a routine annual message delivered to congress by president james monroe in december 1823, the doctrine warns european nations that the united states would not tolerate further colonization or puppet monarchs.