The best and most correct answer among the choices provided by your question is the fourth option or letter D. The respiratory areas of the brain are located in the pons and in the medulla oblongata.
The respiratory centers (RCs) are located in the medulla oblongata and pons, which are parts of the brainstem. The RCs receive controlling signals of neural, chemical and hormonal nature and control the rate and depth of respiratory movements of the diaphragm and other respiratory muscles.
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