The passage helped in supporting the claim that the sugar trade led to the end of slavery in some parts of the world because it describes how testimony on the brutal practices on sugar plantations convinced Parliament to end the slave trade.
The main idea of the author is to tell the readers about the impact of sugar in ending the slave trade and thereby changing the world.
According to the author, there were different accounts of people about the inhumanity that occurred as the slaves worked on the sugar plantations. They worked for long hours and were treated badly.
Due to this act, the parliament had to end the slave trade, and thus sugar changed the world.
In conclusion, the correct option is C.
