26) The reason why people addicted to cocaine require more of the drug to simulate the same "high" after repeated use is because A Dopamine neurotransmitter stops being produced in the pre-synaptic neuron.
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B Axons in the pleasure/reward center of the brain are damaged by cocaine.
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C Post-synaptic neurons in the pleasure/reward center decrease the number of dopamine receptors.
D The dopamine re-uptake channels blocked by cocaine keep dopamine in the synapse for a longer duration,