Answer:
A. It involves a prince and princess who do not have names
Step-by-step explanation:
There is a characteristic and all fairy tales that is the presence of basic characters, who are often left without names, so that they do not represent someone specific, but that allow the stimulation of the imagination and the subjectivity that this type of story usually presents.
An example of this can be seen in the story presented in the question above, where the text presents a prince and a princesses who represent royalty through basic characters without a name.