Is there options to choose from? If so tell me.
Tiber River. The most important river in central Italy. It runs some 400 kilometers through a long valley running from Tuscany through Umbria, Latium, past Rome, to the Tyrannize Sea at Ostia (literally, the “mouths” of the river). The river had a positive as well as negative impact on the development of Rome.
The Mediterranean Sea was important to the Roman Empire in that it was a vital trade link with other parts of the Empire, especially the Middle East and North Africa. ... The Romans referred to it as "their sea" and would not allow competing empires to flourish on it, such as the Greeks and Egyptians.
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.