Anatomy & physiology question:

drug addiction has reduced the number of receptors in the addict's neural synapses. how will this affect signal transduction at the synapse?

a.) less neurotransmitter will be produced by the presynaptic cell.
b.) more neurotransmitter will be produce by the presynaptic cell.
c.) more ion channels will open in the postsynaptic cell.
d.) fewer ion channels will open in the postsynaptic cell.