The Byzantine Empire was the eastern continuation of the Roman Empire after the Western Roman Empire's fall in the fifth century CE. ... Changes: The Byzantine Empire shifted its capital from Rome to Constantinople, changed the official religion to Christianity, and changed the official language from Latin to Greek.
Answer:
The answer is C.
Explanation:
It is tangible boundaries (C) because these are natural/physical limitations. The other answers would mean that they were marked or created by humans.
Mary White Ovington, Ida B. Wells, W.E.B. Du Bois