The correct answer is D.
The districts of Chhattisgarh that do not touch the boundaries of other states are Dhamtari, Durg, Raipur, and Janjgir-Champa. These districts are all located in the central part of the state, and they are surrounded by other districts of Chhattisgarh.
The districts of Surguja, Korba, and Dantewada all touch the boundaries of other states. Surguja is located in the eastern part of the state, and it borders the states of Odisha and Jharkhand. Korba is located in the central part of the state, and it borders the states of Madhya Pradesh and Odisha. Dantewada is located in the southern part of the state, and it borders the state of Andhra Pradesh.
The districts of Durg, Raipur, Dhamtari, and Janjgir-Champa are all located in the central part of the state, and they are surrounded by other districts of Chhattisgarh. These districts are all connected to each other, and they do not touch the boundaries of any other states.