Problem: A 39-year-old veteran presents with comorbid posttraumatic stress disorder (PTSD) and substance abuse. Her clinician recommends addressing her PTSD and substance use disorder (SUD) simultaneously. Which of the following statements is true regarding managing co-occurring PTSD and SUD? A. Individualized trauma-focused PTSD treatment, like Prolonged Exposure, alongside SUD intervention, can reduce PTSD severity and drug/alcohol use B. Non-trauma-focused PTSD therapies, like Seeking Safety, are more effective than treatment as usual for reducing PTSD symptoms in patients with PTSD and SUD C. The presence of an SUD should prevent concurrent treatment and SUD must be stabilized prior to treating the PTSD