Question

how was william wilberforce, a member of parliament, able to affect the future of slavery in britain? in 1804, he was able to get an amendment passed abolishing slavery in most northern us states. in 1833, he was able to get reduced penalties for runaways. in 1833, he achieved a ban on the use of enslaved labor in factories. in 1807, he achieved a ban on british slave trade.

Explanation:

William Wilberforce was a key British abolitionist. The 1807 Slave Trade Act, which banned British involvement in the transatlantic slave trade, was a major achievement of his parliamentary advocacy. Other options are incorrect: he did not affect US slavery (1804 claim), reduce penalties for runaways (1833 claim), or ban enslaved labor in factories (1833 claim; the 1833 Emancipation Act abolished slavery in British colonies, not factory labor specifically).

Answer:

The Right Graph: In 1807, he achieved a ban on British slave trade.