The correct option is D Medulla oblongata - Temperature regulation
Medulla oblongata contains centre for the control of heart beat, respiration, digestion, blood pressure, gut peristalsis, swallowing of food, secretions of glands, involuntary function, i.e. vomiting. Coughing, vasoconstrictor, vasodilator, sneezing, hiccuping, etc. The medulla oblongata is not the centre for temperature regulation, it is controlled by the hypothalamus.