Answer:
d. receptor, sensory neuron, interneuron, motor neuron, effector
Explanation:
Receptor is the first component of the reflex arc with the function to receive signal (it detects the change in environment, external or internal).
Sensory neuron is responsible for the transport of signal from the receptor to the interneuron which is then connected with the motor neuron.Motor neuron further sends the signal to the effector which produces the response (e.g. muscle contraction).
