The correct answer to this open question is the following.
Although the question does not provide any options, we can say that the Sepoy (1857) and Morant Bay (1865) rebellions coincided with the extension of suffrage to more working-class whites to produce a more rigid line between whites and blacks within the British empire.
The Sepoy rebellion of 1857 in India tried to put a stop on the injustices to the Indian people under the rule of the British East India Company. The mutiny started in Meerut, close to Deli when a group of soldiers known as the Sepoys, began the rebellion. The mutiny was big but in the end, it had no success.
On the other hand, Paul Bogle, who was a preacher in Jamaica, initiated the rebellion in Morant Bay on October 11, 1865, when organized a group of black people to start a protest marching to the courthouse. They were repelled by soldiers and then is when they burned the building.