Final answer:
The correct answer is Serfs. Serfs were free to leave the manor, but often chose not to due to the lack of alternative options. They were tied to the land they worked and relied on it for their livelihood, as well as the protection and support of the lord and the Catholic Church.
Step-by-step explanation:
The correct answer is B) Serfs. Serfs were free to leave the manor, but often chose not to due to the lack of alternative options. They were tied to the land they worked and relied on it for their livelihood, as well as the protection and support of the lord and the Catholic Church.