Which of the following carbonyl compounds does not undergo Aldol addition reactions when treated with aqueous sodium hydroxide? 
Definitions:
Wavelengths
The distances between successive crests of a wave, typically used in the physics of light and sound.
Red
A color at the end of the visible spectrum of light, next to orange and opposite violet, with a dominant wavelength of approximately 620-740 nanometers.
Sensory Adaptation
The process in which sensory receptors grow accustomed to constant, unchanging levels of stimuli over time.
Sensory Fatigue
A condition where there is a temporary decrease in the sensitivity of a sense after prolonged exposure to a stimulus.
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