The neurons control voluntary or involuntary responses of the body.
a. sensory
b. motor
c. autonomic
d. sympatheti

Option B, Motor Neurons

Explanation:

A motor neuron is directly or indirectly responsible for controlling the organs that is getting affected and in majority of case the affected organ is either muscles or glands. These nerves are situated in the central nervous system (CNS) from where motor signals are send to the muscles of the body. Also these motor neurons are located on the motor cortex due to which axon projecting outside the spinal cord controls all the voluntary or involuntary responses of the muscles.

Hence, option B is correct.