Atypical antipsychotic drugs alleviate schizophrenia with fewer side effects than other drugs because they:
a. block dopamine synapses for only minutes per day.
b. stimulate dopamine synapses instead of blocking them.
c. have less effect on dopamine receptors but inhibit activation of serotonin receptors
d. act at acetylcholine synapses instead of dopamine synapses.