Use the following to answer question: 
-(Figure: Shifts in Demand and Supply IV) Use Figure: Shifts in Demand and Supply IV.The figure shows how supply and demand might shift in response to specific events.Suppose the price of lumber falls dramatically.Which panel BEST describes how this will affect the market for new houses?
Definitions:
Serotonin
A neurotransmitter in the brain that is critical in regulating mood, appetite, sleep, memory, and learning.
ACh
Acetylcholine, a neurotransmitter involved in many functions including muscle activation and memory.
Reabsorption
The process by which substances are taken back into the bloodstream from bodily fluids or tissues.
Neurotransmitter Molecules
Chemical messengers that transmit signals across synapses from one neuron to another, influencing mental processes and behavior.
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