The correct option is A Motor
There are two types of neurons, motor neurons and sensory neurons. Motor neurons carry signals from the brain to the peripheral body parts. Sensory neurons carry signals from the peripheral body parts to the brain. In the reflex action, there are two body parts involved effector and affector. The effector is the organ that responds once the motor neuron brings the interpreted response from the brain to the effector organ. So, the correct answer is option A.