Answer:
Correct answer is B. The Roman government has ineffective leaders.
Step-by-step explanation:
A is not correct as the period of Republic ended in 1st Century BC, which was a long time before the period of the Fall of the Empire.
Option B is correct as after the death of Constantine The Great Empire had no strong leaders who were able to preserve the unity of the Empire.
Option C is not correct as Hannibal Barca was a ruler of Carthage in 3rd Century BC, during the period of Republic.
D is not correct as wealth of Egypt helped Empire prosper, not for the Empire to collapse.