Which Event Led to the Establishment of the African Methodist

Which event led to the establishment of the African Methodist Episcopal Church?

A) Richard Allen was refused admission to Princeton Seminary because of his color
B) Richard Allen was forcibly removed from praying at the altar rail at his former place of worship.
C) The Methodist and Episcopal denominations merged following a conference in Philadelphia in 1829.
D) Frederick Douglass committed a generous grant for the establishment of a black northern church.
E) Charles Grandison Finney delivered a series of lectures calling for a black American church.