Which of the following is the correct sequence in a typical reflex arc?

Q. Which of the following is the correct sequence in a typical reflex arc:

1. effector, afferent neuron, integration centre, efferent neuron, receptor
2. receptor, afferent neuron, integration centre, efferent neuron, effector
3. effector, efferent neuron, integration centre, afferent neuron, receptor
4. receptor, efferent neuron, integration centre, afferent neuron, effector
5. receptor, afferent neuron, efferent neuron, integration centre, effector

Answer: receptor, afferent neuron, integration centre, efferent neuron, effector