Alec Was in a Car Accident with His Best Friend

Alec was in a car accident with his best friend. They were hit by a driver who was texting and smoking while trying to drive. Unfortunately, Alec's best friend was killed in the accident. Though the accident was not their fault, Alec feels like maybe he should have been the one who died, since he was driving. Based in this information, it appears that Alec _____

A) has posttraumatic stress disorder.
B) displays the Type A behavior pattern.
C) will develop a major health problem within the next two years.
D) has survivor guilt.