Europeans domesticated cattle, pigs, chicken, goats, and sheep to the Americas.
https://www.encyclopedia.com/science/encyclopedias-almanacs-transcripts-and-maps/exchange-plant-and-animal-species-between-new-world-and-old-world#:~:text=Europeans%20introduced%20such%20domestic%20animals,hides%20or%20wool%20for%20clothing.
Indians used violent as well as peaceful means of agitation against the British rulers. The Congress Party was the largest anti-British organization. Led by Gandhi ji, it used non-violence and satyagraha to press its demands for independence.
Not all the Indians believed in peaceful means, though. The Indian National Army was a military organization that actively fought against the British forces during the Second World War.
There were a lot of revolutionaries also who used bombs and weapons against the British. Some of them were grouped under the Hindustan Republican Army.
1.A)through elections/ 2.C)South Africa/ 3.C)economic sanctions(POSSIBLY)
I think appeasement is not a good strategy with Hitler. He was too obsessed with a power which made Chamberlain's appeasement not a solution to stop his military aggression. If Chamberlain did not enter this diplomatic relation he could have defeated Hitler earlier.
The photograph is a primary source because the person was actually there and the painting that the person made they could’ve added anything that they wanted to into the drawing