Which statement explains how the feudal system was an important cause leading to the emancipation of serfdom?

Feudalism was the system used to replace the system of serfdom after emancipation, which further exploded serfdom and promoted indentured servitude.
Feudalism was an outdated system which led people to revolt until Alexander. The second was convinced to get rid of it through the emancipation of serfs.
Feudalism and other countries encourage Alexander’s the second to abolish serfdom in order to modernize Russia.
Feudalism held Russia in the past, with the practice of indentured servitude through serfdom, which prevented Russia from modernizing.

Feudalism held Russia in the past, with the practice of indentured servitude through serfdom, which prevented Russia from modernizing.