Ballistic Missiles were not invented until 1936 so the answer is A
Answer:
Explanation:
Empire failed to enforce its rule, and its vast territory was divided into several successor polities. The Roman Empire lost the strengths that had allowed it to exercise effective control over its Western provinces.Increasing pressure from invading barbarians outside Roman culture also contributed greatly to the collapse. Emperors, the internal struggles for power, the religious changes of the period, and the efficiency of the civil administration.
