Why was the sepoy rebellion important for the world to understand?

The Sepoy Rebellion was caused by

The mutiny broke out in the Bengal army because it was only in the military sphere that Indians were organized. The pretext for revolt was the introduction of the new Enfield rifle. To load it, the sepoys had to bite off the ends of lubricated cartridges.

Explanation:

answer; ///i do believe that the correct answer is (d); ///athens had a small population;

the answer is a) the proclamation of 1763.