In What Way Is Panic Disorder Sometimes Self-Perpetuating

In what way is panic disorder sometimes self-perpetuating?

A) Panic attacks damage the heart, which increases the probability of another panic attack.
B) People who suffer panic attacks are often mistaken for epileptics and given anti-epileptic drugs that increase overall arousal.
C) People who suffer panic attacks are often given tranquilizers that backfire and cause more panic attacks.
D) Worry leads to hyperventilation, which increases the probability of a panic attack.