Answer:
Panic attacks typically begin suddenly, without warning. They can strike at any time, when you're driving a car, at the mall, sound asleep or in the middle of a business meeting. You may have occasional panic attacks, or they may occur frequently.
Explanation:
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The answer is source B because it has a listed author who is an expert and it is the governments organization website which are more reliable that a .com website. Source A does not even list the author so you do not know who wrote it could be anyone.
The body's state of normal, baseline functioning is called Homeostasis
The answer is take responsibility