A Researcher Is Studying the Morphological Changes in the Aging

A researcher is studying the morphological changes in the aging heart in healthy patients. if a patient with 20 year participant in this study and the researcher found that the patient's left ventricular ejection fraction has remained stable throughout the 20 years.  Which of the following changes is most likely responsible for the preserved left ventricular ejection fraction in this patient?

A) Cardiomyocyte hypertrophy
B) Increased arterial reserve capacity
C) Increased left ventricular compliance
D) Increased left ventricular diastolic volume
E) Stable ventricular myocyte number

Correct Answer:

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