According to the textbook's discussion on anxiety:

Question

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The textbook discusses how anxiety can be adaptive and make sense in certain situations, such as when facing a potential threat or danger. It also explains how anxiety disorders can develop when this response becomes excessive or maladaptive.

Answer: C
 The textbook describes panic attacks as being characterized by a fear of dying or losing control, which can make them seem particularly overwhelming to those experiencing them. They are sometimes referred to as the "fear of fears" because of how intense and distressing they can be.

Answer: D
 The textbook does not suggest that it is unusual for mentally healthy individuals to experience a panic attack. In fact, it notes that panic attacks can occur in response to stress, phobias, or other triggers and can be a feature of anxiety disorders or other mental health conditions.

According to the Textbook's Discussion on Anxiety