What was the Jajmani system of the Mughal period?

• A. A revenue system in which revenues of different units of land were assigned to officials in lieu of salaries
• B. An administrative system in which ranks in terms of numbers were assigned to nobles, military commanders and other prominent people for placing them in the official hierarchy
• C. A reciprocal system that existed in rural India between the peasantry and other occupational groups
• D. A commercial system that developed in Urban India for facilitating commercial transactions on a large scale