The correct answer is: B. Santhal Pargana
The Santhal Pargana was a district created by the British in 1832 to pacify the Santhal Uprising. The uprising was a rebellion by the Santhal people against British rule. The Santhals were a tribal people who lived in the forests of Jharkhand, India. They were unhappy with British rule because they felt that they were being exploited by the British. The uprising began in 1855 and lasted for two years. The British were eventually able to suppress the uprising, but they created the Santhal Pargana in an attempt to appease the Santhal people. The Santhal Pargana was a self-governing district with its own laws and customs. It was ruled by a British official, but the Santhal people had a say in how it was run. The Santhal Pargana was abolished in 1947, but it is still remembered as an important part of Santhal history.
Option A is incorrect because it is too general. The British did create specific areas to pacify the Santhal Uprising, but the most important of these was the Santhal Pargana.
Option C is incorrect because the Santhal Pargana did not have autonomous status. It was a self-governing district, but it was still under British rule.
Option D is incorrect because the British did create the Santhal Pargana to pacify the Santhal Uprising.