A popular science demonstration is to take several liquids that will not mix together and "stack" these liquids in a tall glass cylinder. Suppose the following three liquids were placed in the same tall, narrow glass cylinder: 
The substance that should be placed first in the cylinder so that it is on the bottom is ________.
Definitions:
Personal Unconscious
Jung's term for the layer of the unconscious that is made up of forgotten or suppressed experiences unique to an individual.
Total Personality
The complete range of characteristics, traits, and behaviors that make up an individual's distinctive personality.
Conscious
The state of being aware of and able to think about one's own thoughts, memories, feelings, and sensations.
Subconscious
A part of the mind that lies just below the level of conscious awareness, influencing thoughts and actions without overt acknowledgment.
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