In addition to ventilatory changes, which of the following can occur in response to peripheral chemoreceptor stimulation?
I. Peripheral vasoconstriction
II. Systemic arterial hypertension
III. Bradycardia
IV. Increased pulmonary vascular resistance
a. I, II, III, and IV c. I and II only
b. I and IV only d. I, II, and IV only
d. I, II, and IV only
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