Answer:
The correct answer would be C) Receptor molecules play an important role in communication between cells.
The given diagram is an illustration of how action potential or electric impulse is passed from one nerve cell to another across the synapse.
Chemical messengers called neurotransmitters are released from the nerve endings of pre-synaptic nerves.
The receptors present on the surface of the second nerve (post-synaptic nerve) receive these neurotransmitters which generate a new action potential in the second nerve.
