Normal Myocardium Is Shown in the Left Hand Panel of the Accompanying

Multiple Choice

Normal myocardium is shown in the left hand panel of the accompanying photomicrograph,whereas the right hand panel shows abnormal myocardium.Which one of the following is the most likely pathophysiologic explanation for the changes seen in the myocardium on the right?

A) Acute inflammation,due to myocardial infarction
B) Ageing
C) Cancer of the myocardium
D) Increased number of cells
E) Increased synthesis of proteins and intermediate filaments