The correct answer is A. Santhal revolt.
The Santhal revolt was a major tribal revolt that took place in the Jharkhand region of India in 1855. The revolt was led by the Santhals, an indigenous tribe of the region, who were protesting against British rule. The revolt was brutally suppressed by the British, but it is considered to be a major turning point in the history of Jharkhand.
The Ho Uprising was a tribal revolt that took place in the Jharkhand region of India in 1832. The revolt was led by the Hos, an indigenous tribe of the region, who were protesting against British rule. The revolt was brutally suppressed by the British, but it is considered to be a major turning point in the history of Jharkhand.
The Kol Uprising was a tribal revolt that took place in the Jharkhand region of India in 1831. The revolt was led by the Kols, an indigenous tribe of the region, who were protesting against British rule. The revolt was brutally suppressed by the British, but it is considered to be a major turning point in the history of Jharkhand.
The Dhal revolt was a tribal revolt that took place in the Jharkhand region of India in 1857. The revolt was led by the Dhals, an indigenous tribe of the region, who were protesting against British rule. The revolt was brutally suppressed by the British, but it is considered to be a major turning point in the history of Jharkhand.
The Santhal revolt was the most successful of the four revolts, and it led to the establishment of the Jharkhand state in 1950. The other three revolts were also significant, but they did not lead to the same level of success.