The correct answer is: D. 1833
Slavery was abolished in Britain in 1833, with the Slavery Abolition Act. This act abolished slavery throughout the British Empire, including in the Caribbean and the Americas. The act was passed by Parliament after a long campaign by abolitionists, who argued that slavery was morally wrong and that it was damaging to the British economy.
The Slavery Abolition Act was a major step forward in the fight against slavery, but it did not end the practice overnight. It took many years for slavery to be completely abolished throughout the world. However, the act of 1833 was a significant milestone, and it helped to pave the way for the eventual end of slavery worldwide.
Option A: 1830 is incorrect because slavery was not abolished in Britain in 1830. The Slavery Abolition Act was passed in 1833.
Option B: 1837 is incorrect because slavery was not abolished in Britain in 1837. The Slavery Abolition Act was passed in 1833.
Option C: 1843 is incorrect because slavery was not abolished in Britain in 1843. The Slavery Abolition Act was passed in 1833.