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Which of the following is a true statement with respect to crisis intervention and psychological

debriefing as a preventive strategy for post-traumatic stress disorder (PTSD)? 

A. Crisis intervention and psychologic debriefing is most effective if it occurs within 24 hours of the event 

 B. The focus of crisis intervention and psychologic debriefing is management of emotional reactions 

 C. Psychoeducation is not typically a component of crisis intervention and psychologic debriefing 

 D. No controlled studies support that crisis intervention and psychologic debriefing improves outcomes