Use the following to answer questions .
Exhibit: Aggregate Production Function 
-(Exhibit: Aggregate Production Function) In drawing the aggregate production function, which of the following variables is not held constant?
Definitions:
Dreams
A series of thoughts, images, and sensations occurring in a person's mind during sleep.
Reprocessing Information
The mental process of recalling, analyzing, and potentially altering memories or information.
Electrical Activity
Electrical Activity refers to the movement of electrically charged particles, such as ions, within or between cells, often associated with neural and muscular function.
Symbolic Meaning
involves the representation of ideas or concepts through symbols or underlying meanings beyond the literal sense.
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