Olaudah Equiano is the historical figure who played an important role in the abolition movement in Great Britain. Option A is correct.
Olaudah Equiano called in his lifetime as Gustavus Vassa was a writer and abolitionist from the Igbo region of what is now southeastern Nigeria, or from South Carolina according to other sources.
In London, Equiano belonged to the Sons of Africa, an abolitionist group made up of well-known Africans living in Britain.
