Which of the following is true of the Mansabdari System?

(i) Mandab denotes the rank an official held in the Mughal hierarchy. 

(ii) Mansabdari usually entailed military obligations towards the empire.

(iii) Salary of a Mansabdar was indicated in the award rank he held.

(iv) Remuneration for Mansabdari was provided only in terms of grants of jagir.