For which of the following items, Alauddin Khilji sought to fix the cost? (i) Sugarcane (ii) Diamond (iii) Grain (iv) Fish Select the correct answer using the codes given below.

Alauddin Khilji instituted comprehensive market reforms aimed at fixing the prices of essential commodities, primarily to maintain a large and affordable army. Statement (iii) is correct; grain was a major focus of his price control measures, with prices fixed for various types of cereals. While less prominently mentioned than grain and cloth in some accounts, his regulations covered a wide range of goods. Statement (i) (Sugarcane) and (iv) (Fish) are plausible items that could fall under the category of foodstuffs or agricultural produce whose prices were regulated in a comprehensive system aimed at controlling the cost of living. Statement (ii) (Diamond) is incorrect; luxury items like diamonds were not subject to these price controls, which focused on necessities and items required for the state's military and economic stability.