The dorsal root in a reflex arc receives signals from sensory neurons.
So,option C is correct one.
Explanation:
The impulse moves along a sensory neurons via dorsal root and into our spinal column here then it passes to an inter-neuron.
An afferent or sensory neurons collects stimuli received by receptor throughout the body include the skin, eyes, ears, nose, tongue and receptors in the internal organ.
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