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Choose one answer

1. ACalcium efflux, vesicle fusion, transmitter release, receptor binding
2. BReceptor binding, calcium influx, vesicle fusion, transmitter release
3. CTransmitter release, calcium influx, vesicle fusion, receptor binding
4. DCalcium influx, vesicle fusion, transmitter release, receptor binding
5. EVesicle fusion, receptor binding, calcium influx, transmitter release