Which of the Following Is NOT a Manner in Which

Which of the following is NOT a manner in which disturbances in neurotransmitter systems can result in abnormal behaviour?

A) Having certain neurotransmitters working in brain circuits not responsive to those transmitters
B) Having an excess or deficit in the amount of the transmitter-deactivating substance in the synapse
C) Having too much or too little of the neurotransmitter produced or released into the synapse
D) Having too few or too many receptors on the dendrites of the receiving neurons
E) Having the process of reuptake (drawing released neurotransmitters back into the releasing axon) be too rapid or too slow