Question

Works like the autobiography of Olaudah Equiano helped expose

the brutal conditions of slavery
the benefits of triangle trade
the flaws of the popular abolition movement
the economic value of the plantation system

Answer 1

the brutal conditions of slavery

Answer 2

Olaudah Equiano helped expose : the brutal conditions of slavery

As a former slave himself, he experienced those horrible things first hand.
He's more well known as Gustavus Vass, an activist who supported the British movement to end the slave trade

hope this helps