The correct option is C Chitradurga
Gulbarga district in North Karnataka has the largest area under cultivable land in the state. Belagavi, Vijayapura, Tumakuru, Raichur, Bagalkot, Ballari, Chitradurga, and Mysuru districts follow Gulbarga in the list of net sown areas. Bengaluru district stands at the bottom of the list because of urbanisation.