Answer:
agoraphobia.
Explanation:
Agoraphobia -
It is a form of anxiety disorder , where the person tries to resist to the place he or she fear off , tries to avoid any type of embracement , panic or terror , is known as the condition of agoraphobia.
People suffering from such condition , does not take any risk and do all the monotonous work , these people even tries to avoid any type of crowded places like public transportation , any closed place , like lift .
As, they are very prone to get panic attack from even very minute things of the environment .
Hence , from the question , Susan is suffering from agoraphobia.
