The correct answer is C. Jharkhand.
Jharkhand is a state in eastern India. It was carved out of Bihar on 15 November 2000. The state is named after the Jharkhandi people, who are an ethnic group native to the region. Jharkhand is a mineral-rich state, and its economy is based on mining and agriculture. The state is also home to a number of tribal groups.
Vananchal is a proposed state in eastern India. The proposed state would be carved out of Jharkhand, Chhattisgarh, and Odisha. The proposed state would be home to the tribal people of the region.
Vidarbha is a region in central India. The region is home to the Marathi people. The region is currently divided between the states of Maharashtra and Madhya Pradesh. There have been calls for a separate state of Vidarbha.
Chhattisgarh is a state in central India. The state was carved out of Madhya Pradesh on 1 November 2000. The state is named after the Chhattisgarhi people, who are an ethnic group native to the region. Chhattisgarh is a mineral-rich state, and its economy is based on mining and agriculture. The state is also home to a number of tribal groups.