The second alternative is correct (B).
Private and individual private relations are governed by the order of civil law.
Our society is governed by norms that allow us to live in an organized way, in which duties and rights must be respected. Civil law is the set of rules and principles that guide our private relations with other people, so that there is a good coexistence in community.
Thus, civil law exists to ensure that the rights and obligations of individuals and companies are guaranteed. When any agreement or obligation is violated, the injured party can complain to the civil justice.