During Reconstruction, the Role of the Church in the Black

During Reconstruction, the role of the church in the black community:

A) declined because ex-slaves realized they owed their freedom to fellow human beings, not to God.
B) changed as African-Americans joined white churches rather than worshipping separately.
C) declined as other black-run institutions became more central in African-American life.
D) was central, as African-Americans formed their own churches.