1807 is significant because the British Parliament responded to the popular outcry and abolished the slave trade. This did not end slavery.
Answer: Option B and C
Explanation:
The British Parliament was responsive to its subjects and hence was sensitive towards the issue of slavery. In line with the growing outrage against slavery among the people of Britain, the Parliament passed the Slave Trade Act in 1807 and banned any new trade of slaves.
It allowed to continue the practice of slavery for they also had to think of those who had paid huge amounts to buy slaves.