A nurse is providing education about the pathophysiology of cardiomyopathy to the family of a child who has been recently diagnosed with the condition. Which of the following statements made by a caregiver indicates understanding?

A. “There is an increased workload on the right side of the heart, making the muscle thinner and harder for the heart to pump blood through the body.": Cardiomyopathy typically involves the ventricles rather than just the right side of the heart, and ventricular muscle often becomes thickened or dilated rather than thinner initially. B. "There is an increased workload on the left side of the heart, making the muscle thicker and harder for the heart to pump blood through the body.": While left-sided involvement can occur, cardiomyopathy often affects both ventricles, not solely the left side. C. “There is an increased workload in the right and left atria, making the muscle thinner and harder for the heart to pump blood through the body.": The atria are not the primary sites affected in cardiomyopathy; pathology predominantly affects the ventricles, which manage the major pumping workload. D. “There is an increased workload in the right and left ventricles, making the muscle thicker and harder for the heart to pump blood through the body.": Cardiomyopathy causes the ventricular muscle to undergo hypertrophy or dilation due to increased workload, impairing effective pumping. This accurately reflects the pathophysiology and ventricular involvement.