Which Person Is More Likely to Experience Traumatic Events And

Which person is more likely to experience traumatic events and, as a result, experience PTSD?

A) Joel, a Type-B personality who isn't deadline driven and enjoys music
B) John, an anxious and easily angered student
C) Peter, an irritable blue collar worker who enjoys driving fast
D) Thomas, a quiet, easy mannered manager whose idea of "risky" includes swimming in the local lake
E) Michael, an online video gamer who stays in nightly