Correct answer is the incorporation of Hindus into the political-military elite of the Mughal Empire under Akbar.
Explanation:
The only correct answer is the second option as devshirme was the custom in the Ottoman Empire according to which young boys of non-Muslim origin were brought to Istanbul to be prepared to became an elite unit in the Empire, called janissaries. Therefore this custom was similar in Mughal Empire, as they were doing similar things with Hindus.
All other options are not correct as are not connected with this custom.
