Six Months After Being Sexually Assaulted, a Woman Tells the Nurse

Six months after being sexually assaulted, a woman tells the nurse that she has nightmares about the incident and develops acute anxiety if she finds herself alone in situations where several men are present. The most appropriate nursing diagnosis for the patient is

A) anxiety related to effects of being raped.
B) sleep deprivation related to frightening dreams.
C) rape-trauma syndrome related to rape experience.
D) ineffective coping related to inability to resolve incident.