Neurons control voluntary or involuntary responses of the body.
a. sensory
b. motor
c. autonomic
d. sympathetic

There are three kinds of neurons in your body. These neurons are sensory neurons, inter-neurons, and motor neutrons.
1 Sensory neutrons pick up stimuli from the environment and converts it into a nerve impulse. The nerve impulse travels along the sensory neuron until it reaches an inter-neuron.
2 Inter-neurons carry nerve impulses from one neuron to another neutron. Sometimes inter-neutrons pass impulses from sensory neurons to motor neutrons.
3 Motor neutrons send an impulse to a muscle, and then the muscle reacts.

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The answer is d. worthless