Final answer:
FC 51.02 refers to the legal guardian of a child.
Step-by-step explanation:
According to the information provided, FC 51.02 refers to the legal guardian of a child. The legal guardian is someone who has been given the legal authority and responsibility to care for and make decisions on behalf of the child. This can include individuals who are not the child's biological or adoptive parents, but have been appointed as the child's guardian by a court of law.