A parable is an account of a simulated or a fictitious event from which an important truth, a moral teaching or a religious principle are inferred by means of a comparison. Among the options that you have been given, I would contend that the most suitable one is the C: It portrays people realistically. The work does refer to biblical characters, it has religious connotations, and it features a particular rhyme scheme, but, as a parable, it aims at presenting information in a simple, understandable and convincing way, and it does so by portraying the various biblical, historical and mythological figures succinctly, accurately and realistically.
The dialect makes it easier for the audience to picture out the setting of the story. The dialect makes the setting more descriptive and makes the story more vivid and easier to understand. The author also uses symbolism to tell the lessons of Trifles.
