Answer:b) posttraumatic stress disorder
Explanation: This is a disorder that makes people take long to recover after they have been exposed to intensely traumatizing events or stressful and horrible events. In this case Loelle was exposed to possible terrible killings which occurs when soldiers are at the war.
He might have been part of killing certain individuals and had experienced death and some horrible events of burning people alive hence all those events may be haunting him even after he is back to his normal life causing him to experience posttraumatic disorder.
It takes time fora person to recover from this disorder and also depending on whether they seek help or not.