The answer is hook! I know this because I love English. The hook is the first sentence of an essay. It makes the readers want to read it. Hope this helped. Have a great day!
It protected the sultan's power by providing him with a group of extremely loyal officials and soldiers is why the Devshirme system was so important to the Ottoman Empire. The correct option among all the options that are given in the question is the fourth option or option "D". I hope the answer comes to your help.
I think it would be the third one