Use resonance structures to explain why the substituent shown below is an activating group. 
Definitions:
Yawn
A reflex consisting of the simultaneous inhalation of air and the stretching of the eardrums, often triggered by tiredness, stress, or boredom.
Mirror Neurons
Neurons that activate both when an individual performs an action and when they observe the same action performed by another, thought to be fundamental to learning and empathy.
Mentally Simulating
The process of imagining or recreating experiences in the mind, often used as a method of learning or preparing for actual events.
Modeling
A method of learning that involves observing and imitating others.
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