Which of the following statements best explains the effect of release of neurotransmitter at a parasympathetic ganglion.     Release of noradrenaline at a parasympathetic ganglion causes nicotinic acetylcholine receptor activation in the post-ganglionic neuron.     Release of acetylcholine at a parasympathetic ganglion causes nicotinic acetylcholine receptor activation in the post-ganglionic neuron.     Release of acetylcholine at a parasympathetic ganglion causes muscarinic acetylcholine receptor activation in the post-ganglionic neuron.     Release of neurotransmitter at a parasympathetic ganglion leads to decreased generation and release of the NANC transmitter, nitric oxide.

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