Indicate whether each of the following reactions is an electrocyclic reaction, a cycloaddition reaction, or a sigmatropic rearrangement. 
Definitions:
Pavlov's Dogs
An experiment by Ivan Pavlov demonstrating classical conditioning through the use of dogs, bells, and food, showing how associative learning works.
Little Albert
The subject of a famous psychology experiment by John B. Watson, demonstrating that emotional responses can be conditioned in humans.
Fear / Distress Response
An emotional and physiological reaction to perceived threats or danger, involving the activation of the fight or flight response.
Electra Complex
In psychodynamic theory, a girl's psychosexual competition with her mother for possession of her father.
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