Answer:
c. post-traumatic stress
Step-by-step explanation:
Based on the information provided within the question it seems that Cordelia is experiencing a post-traumatic stress disorder. Better known as PTSD, this disorder is a mental health condition in which a person fails to overcome a terrifying event that they have lived. This disorder is characterized by flashbacks, severe anxiety, nightmares, and even suicidal tendencies caused by continuous thoughts about the event. This is what Cordelia is experiencing after surviving the IED explosion in Afghanistan.