The correct option is C: the inclusion of subjective truth.
Postmodern fictions are characterized by using as narrator a first person who tells his story in a very personal way. Often this aesthetic tendency to reduce the world to one's gaze has been the source of many criticisms, which point out that literature should aim at universality, empathy. However, the subjective truths that postmodern texts hold often hide in their apparent individuality, feelings shared by hundreds of people.