Hint: The cyton of reflex means the flow of the direction of impulse is asked and what kind of direction of cyton is seen in the central nervous system and the autonomal nervous system.
First of all you should know what cyton is. The structural and the functional unit in the nervous system is the neuron which receives the impulse and sends it to the spinal cord and brain. This neuron is made up of cyton, axon and dendrites. Cyton is the cell body of the neuron which contains the nucleus. It receives electric impulse from other neurons through dendrites and makes it go to the axon and then this impulse moves away from the cell body to the axon.
In the similar way if we look at the question, in the question it is asked what will be the direction of impulse in the central nervous system and autonomal nervous system. The nature of cyton is motor which means that the impulse is transmitted from the central nervous system to the effector organs.
> Option A i.e., Sensory. Sensory means the transmission of impulse is from the receptors of sensory organs to the central nervous system and autonomal nervous system. This option is incorrect because this is not the flow of direction of cyton.
> Option B is Mixed. It means the nature of cyton is mixed which is sensory and motor both. But this is not the nature of cyton. So this option is also incorrect.
> Option C is Motor which is the real nature of cyton of reflex. It means the impulse will be transmitted from the central nervous system to the effector organs and in the question too the nature of cyton is asked in the central nervous system. So, this option is the correct one.
> Option D is all of the above. Since the first and the second option is incorrect and the answer cannot be all of the above. Hence, this option is also incorrect and the correct option is motor. only.
Hence, The correct answer is option (C).
Note: Since the flow of the direction of impulse of the cyton in the central nervous system is motor i.e., the impulse gets transmitted from the central nervous system to the effector organ then only that can be the right option. You should always remember the nature of cyton in CNS is motor.