Afferent and efferent axons travel together in spinal nerves, but they separate into different bundles when they leave and enter the spinal cord. The afferent axons enter the spinal cord via the root and efferent axons leave the spinal cord via the root.

1. Dorsal root

2. Ventral root

Explanation:

The afferent nerves are the neurons that transmit the signals from the sensory receptors to the central system that is the brain and the spinal cord.

These afferent nerves are known as the sensory nerves and they enter the spinal cord through the dorsal root from where it enters the gray matter of the spinal cord.

The efferent nerves are the neurons that transmit the signals from the brain to the effector's muscle and so is known as the motor neuron. The neuron exits the spinal cord from the ventral root of the spinal cord.

Thus, the dorsal and ventral root is the correct options.

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explanation: