Every Time David Smells the Least Amount of Smoke, He

Multiple Choice

Every time David smells the least amount of smoke, he tends to relive the house fire he was in six months ago. Since that fire, David has also had difficulty sleeping, is easily startled, and has felt emotionally numb and unable to experience any real pleasure. David would most likely be diagnosed with:

A) Histrionic personality disorder.
B) Bipolar disorder.
C) Conversion disorder.
D) Post-traumatic stress disorder.