Which of the Following Was Not a Challenge Faced by the Roman

Which of the following was not a challenge faced by the Roman Empire?

A) Whether the economic foundation was strong and elastic enough to endure new challenges.
B) Whether Romans could adapt to the accelerating dynamism of Hellenism.
C) Whether the Roman Empire could maintain the loyalty of its diverse population.
D) Whether the Empire was strong enough to withstand renewed pressure from the Germans and the Persians.
E) Whether the state could maintain a balance between order and change.