After charles darwin began suffering panic disorder, he lived in relative seclusion and traveled only in his wife's company. his panic disorder was apparently accompanied by

His panic disorder was apparently accompanied by "agoraphobia".

Agoraphobia refers to a kind of nervousness issue in which you fear and keep away from spots or circumstances that may make you frenzy and influence you to feel caught, powerless or humiliated. Individuals with agoraphobia frequently have indications of a fit of anxiety, for example, a quick pulse and queasiness, when they end up in an upsetting circumstance.

Ithink it's c selection but i don't really know.