Option a is the correct answer. The military system in the reign of Akbar was based on the mansabdari system. The mansabdari system was a system of ranking and salary for the military and civil officers of the Mughal administration. The mansabdars were divided into two categories: zat and sawar. Zat was the personal rank of the officer, which determined his status, salary, and prestige. Sawar was the rank based on the number of horsemen or cavalrymen that the officer had to maintain for the service of the emperor. The higher the zat and sawar ranks, the greater was the responsibility and authority of the officer. The ranks ranged from 10 to 10,000 for both zat and sawar. Mansab rank was not hereditary. All appointments and promotions as well as dismissals were directly made by the emperor. Important Tips Jagirdari System: The Jagirdari system in the Mughal period referred to revenue assignments. These were given to nobles and other influential people. It started in the 13th century. Instead of paying out cash salaries, certain revenue assignments were granted. The holders of the assigned regions were known as jagirdar, and the assigned areas as jagir. During Akbar's reign, the entire country was roughly divided into two regions: Khalisa (Crown Land) and Jagir (Land Assignments). The proceeds from the Khalisa went to the Imperial Treasury, while the money from the Jagir was distributed to the Jagirdars as their rank-based salary in cash