Why Did Separate Black Church Congregations Receive Criticism Within the Black

Why did separate black church congregations receive criticism within the black community?

A) Some African Americans, including Frederick Douglass, thought separate black church congregations were just another example of segregation in American society.
B) Some African Americans thought that black ministers were far too intellectual and did not speaking to the common black church member.
C) Some thought that the black churches should be more involved with the community, rather than simply holding worship services.
D) Some criticized the churches for not organizing mass marches and protests against segregation.