Agents other than SSRIs may be used to treat PTSD. Which of the following is true of non-SSRI treatments for PTSD?

A. Propranolol and gabapentin are effective in treating PTSD.
B. Anticonvulsant use has been clinically effective in treating PTSD.
C. Second-generation antipsychotics may be effective adjuncts in patients with PTSD symptoms partially improved by SSRIs.
D. Prazosin has no impact on sleep-related disturbances in patients with PTSD.