The correct option is A administration
Sher Shah started the Suri dynasty in 1540 by defeating Humayun. He was one of the greatest administrators of medieval India. He concentrated all administrative powers in his own persons. All major decisions were taken by Sher Shah himself and the ministers and the nobles simply carried them out. There were four administrative departments- Diwan-i-Wazarat, Diwan-i-Ariz, Diwan-i-Risalat and Diwan-i-Insha.