Answer:
Correct answer is It created equality in the economy.
Explanation:
Second option is the only correct one, as feudalism was the system that was established after a period of long insecurity that followed the fall of Western Roman Empire. The system itself, although not perfect led to stabilization of economy in Europe.
First option is not correct as feudal system meant that there were social layers that had totally different rights. Seniors had more rights than vassals, who had more rights than knights, who again had more rights than peasants.
Third option is not correct as peasants and serfs were the poorest people in this system.
Fourth is correct as the currencies developed later. Money lost its value after the fall of Roman Empire for a long period of time.
