A 35-year-old woman who survived a home invasion reports experiencing flashbacks, difficulty sleeping, and severe anxiety when she hears noises at night. She avoids going out after dark and refuses to discuss the incident. Based on these symptoms, which PTSD symptom clusters apply to this patient? A) Intrusive symptoms and negative mood B) Avoidance and alterations in arousal and reactivity C) Dissociative symptoms and intrusive symptoms D) Emotional numbing and hyperarousal