The correct option is B Pons
The neural system is a complex part of living organisms like human beings that helps in controlling and coordinating between various biological processes occurring inside an organism. It mainly consists of the brain, spinal cords, nerves, and sensory organs. The brain has several parts like the cerebrum (forebrain), midbrain, medulla oblongata (stem like structure in hindbrain), pons (horseshoe shaped structure in hindbrain connecting medulla with cerebellum) and cerebellum (dorsal projection in hindbrain). Both medulla and pons have regions responsible for the regulation of respiration.
Medulla contains the respiratory rhythm centre that primarily controls respiratory rhythm while pons possess pneumotaxic centre that moderates the function of respiratory rhythm centre.
Cerebellum is not responsible for the regulation of the respiratory rhythm. It is primarily responsible for controlling voluntary actions. Cerebrum is primarily responsible for memory, speech, and emotional response.