Answer: A) A witness to a crime doesn't know whether she should tell the
truth.
Step-by-step explanation: in literature, a conflict is a struggle between opposite forces, usually between a character (the main character or a very important one) and himself (internal conflict), society or another character (external conflict). From the given options, the one that represents a clear example of an internal conflict, is the corresponding to option A, because the decision of whether or not tell the true, is something that the witness should make on her own.