The Sepoy Rebellion was mainly a rebellion against the imposing rule of the British East Indian Company in India--which many local Indians felt was both economically and morally unfair. It led to a wide-spread British reorganization of the political and military institutions in India in an effort to have more of a solidified rule.
The declaration contained 3 sections: a general statement of natural rights theory and the purpose of government; a list of grievances against the British King; and the Declaration of Independence from England I’m not sure if that’s what you’re looking for but that’s some information if you need it
The Soviets were setting up nuclear missiles in Cuba. This meant that they were now able in theory to launch a nuclear missile directly at large parts of the USA and it was therefore viewed as a threat by the USA. I hope that helps.
I am not sure on what the right answer is but I would choese C or D.