Life Sciences Paper 1, November 2024, question 1.1.5

A boy touches a hot stove plate with his fingertips and pulls his hand away at once, before he feels any pain. Which ONE of the following shows the CORRECT order of the parts of the reflex arc in this response? A Sensory neuron → receptor in the skin → interneuron → effector muscle in the arm B Receptor in the skin → sensory neuron → interneuron → motor neuron → effector muscle in the arm C Receptor in the skin → motor neuron → interneuron → sensory neuron → effector muscle in the arm D Effector muscle in the arm → sensory neuron → interneuron → motor neuron → receptor in the skin Write only the letter (A to D).