Final answer:
The structure of a story similar to a fairy tale often starts with 'once upon a time' and includes a moral lesson and fantastical elements. The correct answer to the question is (a) It's about the 'once upon a time' story.
Step-by-step explanation:
The structure of a story that is similar to a fairy tale often includes certain elements that are characteristic of traditional fairy tales. One typical pattern is the classic 'once upon a time' beginning, which sets the stage for a story set in a timeless past and often in an imaginary place. This opening phrase creates a conjunction between the reader's world and the fantasy world of the story. Fairy tales also usually contain a moral lesson, fantastical elements, and characters that are archetypal rather than based on real-life individuals.
Given the options provided, the correct answer would be (a) It's about the 'once upon a time' story. This phrase is commonly identified with fairy tales and suggests a narrative structure that mirrors the traditional fairy tale genre. Options (b), (c), and (d) do not typically relate to the structure of fairy tales. Fairy tales frequently include a moral lesson (contrary to option b), characters are usually not based on real-life individuals (contrary to option c), and are set in nondescript pasts rather than futuristic worlds (contrary to option d).