Answer:
C. stage directions
Step-by-step explanation:
Out of these options, the only characteristic that appears in plays but does not appear in novels are stage directions. Stage directions are instructions that allow a director to present the play in a theatre in the way in which the author originally envisioned it. This includes guidance in terms of background, movements, facial expressions, setting, etc. As novels are not generally intended to be performed, stage directions are not necessary.