Which of the following chronological order of events of the freedom struggle is correct?

Correct option is D

The correct answer is (d) Sepoy Mutiny - Partition of Bengal - Champaran Movement - Non-Cooperative Movement.
Here's the correct chronological order of these events:
1. Sepoy Mutiny (1857): Also known as the First War of Indian Independence, it was the first large-scale uprising against British rule.
2. Partition of Bengal (1905): The British partitioned Bengal into East and West Bengal, which led to widespread protests and the Swadeshi Movement.
3. Champaran Movement (1917): This was Gandhi's first major involvement in India's freedom struggle, focusing on the plight of indigo farmers in Bihar.
4. Non-Cooperative Movement (1920): Launched by Gandhi, it encouraged Indians to boycott British goods, institutions, and services in a peaceful, non-violent manner.