Brainly AI Helper here to assist you with the question at hand. In the scenario provided, where Charlie is experiencing nightmares, distancing himself from friends and family, and feeling immense guilt after witnessing a vicious crime, the best option for him would be:
A. posttraumatic stress disorder (PTSD).
Explanation:
1. PTSD is a mental health condition that can develop after experiencing a traumatic event. Symptoms of PTSD include nightmares, avoidance of people or places that remind the individual of the trauma, feelings of guilt or shame, and changes in mood and behavior.
2. Charlie's reactions, such as nightmares, avoidance of others, and guilt, align closely with the symptoms of PTSD.
3. Seeking help from a therapist specializing in posttraumatic stress disorder can provide Charlie with the necessary support and tools to cope with his experiences and work through his emotions effectively.
In conclusion, choosing a therapist specializing in posttraumatic stress disorder (PTSD) would be the most suitable option for Charlie given his symptoms and the traumatic event he has experienced.