The correct answer is (d) axonal end of one neuron to dendritic end of another neuron.
Explanation:
Synapse:
A synapse is the specialized junction where two neurons communicate, allowing the transmission of chemical signals.
Axon:
The axon is the long, slender projection of a neuron that sends electrical signals.
Dendrite:
The dendrites are the branching projections of a neuron that receive electrical signals from other neurons.
Why other options are incorrect:
(a) dendritic end of one neuron to axonal end of another neuron:
While the signal travels from the axon of one neuron to the dendrite of another, the direction of transmission is reversed in this option.
(b) axon to cell body of the same neuron:
The signal travels from the axon to the dendrite, not directly to the cell body.
(c) cell body to axonal end of the same neuron:
This option describes the internal transport of the electrical signal within a single neuron, not the transmission between neurons at the synapse.