Which of the following officers was related to the market-control system of Alauddin Khilji ?

Under Alauddin Khilji, the Divan-i-Riyasat (headed by Malik Yaqub) was the department and officer directly responsible for administering and supervising the market-control system. Divan-i-Ariz was the military department, Divan-i-Insha handled royal correspondence, and Divan-i-Barid was the general intelligence department.