Some People in America Criticized the British Emancipation of All

Some people in America criticized the British emancipation of all slaves in the 1830s on what grounds?

A) Many ex-slaves moved to West Africa, where they were re-enslaved.
B) Violent revolutions occurred in many British colonies in the 1840s.
C) Many freed slaves moved to the United States, flooding an already full labor market.
D) The economy of the Caribbean was harmed as a result.
E) Many ex-slaves could not find work and became homeless.