What upset the sepoys during the british east india company's rule of india?
they were paid less than british soldiers.
they were required to serve overseas.
british tea was being imported into india.
rifle cartridges that supposedly were greased in animal fat were introduced.

They were required to serve overseas.

Explanation:

The sepoys were Indian soldiers who served in the Army of the Company under the command of British officers. These officers were trained in war schools that the Company had in England. The Company's enclaves in Bombay, Madras and Bengal maintained their own armies with their own commanders-in-chief and had a greater contingent of troops than the army of the British Empire. In 1857 there were 257,000 sepoys. and the British soldiers were known as redcoats

The Company also recruited Indians of other castes other than the Brahmins and the Slashthana. The latter are a warrior caste from the western part of northern India. In 1856 troops of sepoys went to fight in Burma. The Hindu tradition dictated that those who "traversed the black waters" lost their caste in the Hindu community. This is why the sepoys were very deeply antagonized when sent out of India.

the space race was a battle to make advanced technology to get to the moon and to get a better understanding of space.