The Nurse Notes That a Patient with a Cardiac Dysrhythmia

The nurse notes that a patient with a cardiac dysrhythmia is developing shortness of breath.What is the pathophysiological reason for this manifestation?

A) Decreased oxygen in the brain
B) Stimulation of the sympathetic nervous system
C) Imbalance in myocardial oxygen demand and supply
D) Increase in oxygenation because of a drop in cardiac output