The correct option is:
The authors provide a primary-source quotation from a British abolitionist named William Wilberforce.
In Sugar Changed the World, by Marc Aronson and Marina Budhos, the writers used primary-source quotations such as that from William Wilberforce to show that enslaved people in Saint Domingue were prepared to damage property to obtain their freedom.
William Wilberforce (1759 – 1833) was a British politician, philanthropist, and a prominent abolitionist leader.