The correct answer is option B: Akbar.

**Explanation:**

The Mansabdari system was introduced by the Mughal emperor Akbar in the 16th century. It was a system of ranking and administration in the Mughal Empire.

**What is the Mansabdari System?**

The Mansabdari system was a system of military and civil administration in the Mughal Empire. Under this system, every officer of the empire, whether military or civil, was given a rank or mansab. The mansab indicated the officer's position, salary, and the number of soldiers he was required to maintain. The ranks or mansabs were divided into different categories, ranging from 10 to 10,000.

**Objectives of the Mansabdari System:**

The Mansabdari system had several objectives:

1. Efficient Administration: The system aimed to establish a well-organized and efficient administration by categorizing officers based on their ranks and responsibilities.

2. Control and Loyalty: It was a way for the emperor to maintain control over his vast empire. By assigning ranks and salaries, the emperor could ensure the loyalty of his officers and prevent them from becoming too powerful.

3. Military Strength: The system also aimed to maintain a strong military force by requiring officers to maintain a specified number of soldiers according to their rank. This helped in the defense and expansion of the empire.

**Features of the Mansabdari System:**

The Mansabdari system had the following features:

1. Rank and Salary: Each officer was given a rank or mansab, which determined his salary and position in the hierarchy.

2. Jagir System: The officers were paid in the form of revenue assignments called jagirs. These jagirs were granted to the officers in return for their military or administrative services.

3. Promotion and Demotion: The officers could be promoted or demoted based on their performance and the emperor's discretion. Promotions were based on merit, loyalty, and achievements.

4. Transferability: The officers were transferable from one province to another, which helped in maintaining a centralized administration and preventing the officers from developing local loyalties.

**Conclusion:**

The Mansabdari system introduced by Akbar played a crucial role in the administration and military organization of the Mughal Empire. It provided a mechanism for efficient governance, control over the officers, and the maintenance of a strong military force. This system continued to be in place throughout the Mughal Empire, though it underwent some modifications under subsequent emperors.