The baroreceptor reflex is a key mechanism in maintaining blood pressure homeostasis. The following statements describe how this reflex works:

A. Baroreceptors located in the carotid sinus and aortic arch detect changes in arterial pressure.

B. An increase in arterial pressure leads to an increased firing rate of baroreceptors, which activates the sympathetic nervous system.

C. Increased baroreceptor activity decreases heart rate and causes vasodilation via the parasympathetic nervous system.

D. A decrease in blood pressure causes increased baroreceptor activity, which activates the parasympathetic nervous system to restore pressure.

Which one of the following options represents the correct combination of the statements?