Ottoman conquests substantially weakened the Byzantine Empire is the Ottoman Empire have on the Byzantine Empire in the 15th Century. Hence, option C is correct.
The Byzantine Empire was the longest-lasting chivalric empire, and its causation can still be seen in many modern governments in Western Europe, Eastern and Central Europe, and Russia, especially in terms of law, art, and architecture.
Thus, option C is correct.
For more details about Byzantine Empire, click here:
https://brainly.com/question/18205624
#SPJ5