Answer:
The correct answer is:
1. interneurons, 2. motor neurons, and 3. sensory neurons.
Step-by-step explanation:
There are three types of neurons that help in providing information of the external environment or stimuli to the brain and have an appropriate response according the stimuli. These three neurons are; sensory neurons, motor neurons, and interneurons.
Sensory neurons are the neurons that carry the signal or information of the stimulus which is activated first when you touch a sharp object, Interneurons are the neurons that are present in the brain and spinal cord when activated to send messages in response to the stimuli of touching the sharp object, motor neurons are the neurons is carry the response signals from the brain and spinal cord to the muscle as it cause you to pull your hand away from the sharp object