The following figure plots Short Run Average Cost functions for small,medium,and large plants.Based on the figure and plots provided,for which quantity level is a medium plant the best choice? 
Definitions:
Psychodynamic Therapies
A group of therapies that focus on uncovering and understanding unconscious motives and conflicts as a path to symptom resolution.
Systematic Desensitization
A behavior therapy that treats anxiety by teaching the client to associate deep relaxation with increasingly intense anxiety-producing situations.
Feared Situation
A scenario or setting that induces a heightened state of fear or anxiety in an individual.
Beck's Cognitive Therapy
A form of psychotherapy developed by Aaron T. Beck that identifies and helps change negative thought patterns and behaviors.
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