The correct option is B Only 2 and 3
Allauddin economic and market reforms:
Alauddin fixed the salaries of his huge army at a very low level. Accordingly the Sultan’s main concern was to enable the soldier to live on his pay. To this end he resolved to control the prices of necessaries.
Alauddin fixed the prices of food grains, cloth and other commodities, and had them enforced rigorously. Everything was set down in tariff; vegetables, fruits, sugar, old, horses, caps, shoes, combs, and needles.” No one was permitted to purchase grain from the cultivators directly. Only the authorized traders could do so. All merchants in Delhi were required to register themselves.
In return they had to sell all commodities at the fixed rates. All types of speculation and black marketing were stopped