The correct answer is C. To foreshadow future events
Step-by-step explanation:
In medias res is a literary device in which the story begins in the middle of the plot (sequence of events) and not at the beginning of it as it occurs normally, this implies writers that use in media res do not follow the chronological order of the events but begin in the middle of them and just after this present the beginning of the story. Writer use this literary device to present specific events to the reader that are connected to previous events and probably solved or continue in future events, thus, in the case of medias res use future events can be predicted or foreshadow as the reader will have to use the information mainly provided in flashbacks to guess how the story gets into the point presented at the beginning which is the middle of the story.