Under what circumstances is a left ventricular assist device used?

A. As a bridge to heart transplantation while a donor heart is being located
B. To ensure that the ventricles contract at an adequate and consistent rate
C. To reduce ventricular pumping force in patients with aortic aneurysms
D. To permanently replace the function of one or both of the ventricles

Ans: A. As a bridge to heart transplantation while a donor heart is being located