For People with Panic Disorder, According to David Barlow, Autonomic

For people with panic disorder, according to David Barlow, autonomic responses such as quickened pulse, pounding heart, difficulty breathing, and so on:

A) result in fear that panic is about to occur; the development of a fear of fear
B) are always present, resulting in high levels of chronic stress
C) tend to precipitate the performance of "magical" rituals that are intended to reduce anxiety
D) are a familiar experience, resulting in a "perceived comfort" with the state of anxiety, which can make treatment difficult