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.
A b c or d is that in this question
Answer:
The Double Victory campaign
Explanation:
The Double Victory campaign, launched by the Courier in 1942, became a rallying cry for black journalists, activists and citizens to secure both victory over fascism abroad during World War II and victory over racism at home.
The answer is Commander of chief
What's the context?
The industrial revolution
Even further back...
The agricultural revolution
Trade?
Communication?
Travel?
Exploration?