Which of the Following Statements About Slavery in the British

Which of the following statements about slavery in the British Empire is accurate?

A) The Quakers were the strongest supporters of slavery and prolonged its role in the empire.
B) Slavery came to an end in 1833 because it was no longer profitable in the Caribbean.
C) Great Britain abolished slavery in 1833 throughout most of its empire due to opposition to it.
D) Great Britain was one of the last European powers to abolish slavery.
E) British writers made the first moral critiques of imperialism and slavery in 1833.