Which of the following conjugated dienes represent two conformations? 
Definitions:
Replace Fear
Techniques or practices aimed at understanding and diminishing feelings of fear, often involving cognitive behavioral therapy or exposure therapy.
Exposure Therapies
A type of cognitive-behavioral therapy that involves the controlled exposure to the stimuli or situations that cause fear or distress to reduce their triggering effect.
Token Economy
A form of behavior modification that uses tokens or symbols as rewards for performing desired behaviors which can be exchanged for privileges or treats.
Patients' Anxiety
The feeling of worry, nervousness, or unease that patients may experience related to their health, medical procedures, or hospital environment.
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