The name "Seven Commandments" suggests that these new laws are intended to be absolute and fundamental rules governing the behavior of the animals on Animal Farm, much like religious commandments. The reference to "commandments" implies that they are seen as authoritative and unchangeable, which aligns with the idea that breaking them would lead to consequences. However, the specific association with the Ten Commandments of religious tradition suggests that they are replacing previously held beliefs (either moral or social) with a new set of laws. Therefore, the most fitting option based on the context would be:
that they are replacing the religious laws known as the Ten Commandments.
This aligns with the theme of the novel, where the ideals of the revolution are positioned as a new guiding principle, akin to religious commandments, to emphasize obedience and adherence among the animals.