What condition made the Byzantines vulnerable to attack by Muslim Turks?
A.
the Council of Nicea
B.
the death of Constantine
C.
ongoing wars with the Sasanian Persians
D.
invasions by Huns and Germanic peoples
C. ongoing wars with the Sasanian Persians made the Byzantines vulnerable to attack by Muslim Turks.
To find the correct answer, we need to understand the historical context and reasons behind the Byzantine vulnerability to attack by Muslim Turks. Let's break down the answer choices one by one:
A. The Council of Nicea: The Council of Nicea was a significant event in the history of Christianity, where church leaders gathered to discuss important theological matters. While the Council of Nicea had an impact on Christianity, it does not directly relate to the vulnerability of the Byzantine Empire to attack by Muslim Turks. Therefore, we can eliminate this option.
B. The death of Constantine: Constantine was a Roman emperor who played a crucial role in the Christianization of the empire and the foundation of Constantinople (formerly known as Byzantium). However, the death of Constantine alone does not explain the vulnerability of the Byzantines to attack by Muslim Turks. This option can also be eliminated.
C. Ongoing wars with the Sasanian Persians: The Byzantines and the Sasanian Persians had a long history of conflict. However, the ongoing wars with the Sasanian Persians were not the primary cause of the vulnerability to Muslim Turk attacks. Although these wars weakened the Byzantines, they were not the direct reason for the vulnerability to Muslim Turk invasions. This option can be eliminated as well.
D. Invasions by Huns and Germanic peoples: The invasions by Huns and Germanic peoples did occur in the late Roman period and had a significant impact on the decline of the Western Roman Empire. However, these invasions did not directly contribute to the vulnerability of the Byzantines to Muslim Turk attacks. This option can also be eliminated.
After evaluating all the answer choices, none of them directly explain the vulnerability of the Byzantines to attack by Muslim Turks. Therefore, none of the given options are correct. The correct answer would involve the expansion of Muslim Turk armies and their capture of territories that were once part of the Byzantine Empire, such as Asia Minor (Modern-day Turkey), which gradually made the Byzantines vulnerable to further attacks.