The correct answer is (c) District road
To explain: District roads are sub-classified into – Major District Roads and Other District Roads. As per the classification of roads broadly the MDRs are to have a minimum width of 15 metres with traffic density of less than 10,000 PCUs but more than 5000 PCUs. It also connects Taluka headquarters and rural areas to District headquarters within the state. As on 31 March 2016, the total length of district roads was approximately 561,940 km of which 94.93 % of the total length were surfaced.