Answer:
Agoraphobia.
Step-by-step explanation:
As the exercise describes with the example, agoraphobia is an anxiety disorder that triggers when a person is somehow perceiving that their enviroment isn't safe, even if they are in open spaces, like a mall. Like in the example, the woman usually avoids crowded streets and buildings; reluctantly leaving home. Furthermore, she has for years experienced numerous panic attacks that come out of the blue and are unexpected and she constantly worries about having another panic attack.