Generally speaking, in order for the settlement to be considered a civilization it would have to have some system of writing--either through letters of symbols--to facilitate communication. <span />
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.
Provide relief, recovery, and reform.
Answer: D
