The correct answer is D. All of the above.
Step-by-step explanation
The Roman Empire was an ancient European civilization that existed since the year 27 a. C. until 476 d. C. Located in the lands near the Mediterranean Sea, Western and Southern Europe, Britain, Asia Minor, and North Africa, including Egypt. Among the reasons for its fall is the spread of Christianity, a religion that gave the Roman population a life expectancy after death, which at that time was in a miserable state. Another reason was the barbarian invasions, mainly of the Visigoths, who came to control much of the Roman territory, which caused economic problems, instability and political division between the Emperors until the fall of the empire. So, the correct answer is D. All of the above.