What upset the united states and moved it closer to entering the war?

If it was the First World War, it would be the sinking of the Lusitania and the Zimmerman telegram.  This caused Americans to abandon their isolationist policy and join the First World War.  If it was WWII, it could be bombing of Pearl Harbor.

b) they want the land taken away from the wealthy landowners and given to peasants.

"the sepoy rebellion was the result of many, many influences and stressors on the cultures of india living under british rule. in britain, it's called the sepoy mutiny on the indian mutiny, but in india, it's called the first war of independence.

the main reason is concerned to the british paramountcy , the belief in british   dominance in india political, economic and cultural life had been introduced in india about 1820."

"they were forced to grow crops that benefited the colonizing nations instead of feeding their own people."