Select the correct option for the reflex arc.

• A
  Receptor $\rightarrow$ Motor neuron $\rightarrow$ Interneuron $\rightarrow$ Sensory neuron $\rightarrow$ Effector
• B
  Receptor $\rightarrow$ Sensory neuron $\rightarrow$ Interneuron $\rightarrow$ Motor neuron $\rightarrow$ Effector
• C
  Effector $\rightarrow$ Motor neuron $\rightarrow$ Interneuron $\rightarrow$ Sensory neuron $\rightarrow$ Receptor
• D
  Effector $\rightarrow$ Sensory neuron $\rightarrow$ Interneuron $\rightarrow$ Motor neuron $\rightarrow$ Receptor